County Fair or I Do
Cotton Fields (Brian's cut) or Cotton Fields (Al's cut)
Land Ahoy or Cherry Cherry Coupe
Big Sur (Holland) or Big Sur (early version)
This Whole World (Sunflower)or This Whole World (IJWMFTT) or This Whole World (live@Roxy)or American Spring version
Morning Beat or Walkin'
Funky Pretty (Holland) or Funky Pretty (live)
Hawaii or Kona Coast
Only with You (Holland/Carl lead) or Only with You (POB bonus track/Dennis lead)
Holidays (Smile) or On a Holiday (BWPS)
Catch a Wave or
Sidewalk Surfin'Marcella (So Tough) or Marcella (live In Concert) or Marcella (performed live by BW and his band)
Darlin' (WH) or Darlin' (live in Knebworth)
Be True to Your School (single) or LDC version
Thinkin' About You baby (Sharon Marie) or American Spring Version
Help Me Rhonda or Ronda or alt. version on EH soundtrackLittle Honda vs. alternate version on 2-fer
Vega-tables (Smile) or Vegetables (Smiley)
Live Let Live (TLOS) or Live Let Live (Soundtrack version)
Don't Back Down vs. alternate version on 2-fer
Airplane (LY studio cut) or Airplane (live version with Charles Lloyd flute solo)
Baby Blue Eyes (LA) or early version from Bamboo rarity
Back Home (early 63 cut) or Back Home (Sunflower cut) or Back Home (15 Big Ones) or Back Home (live at Roxy)
Keep an Eye On Summer or BRian's version on Imagination
Feel Flows (SU studio cut) or Feel Flows (live in later 70s)
Let Him Run Wild or "Imagination version or the alt. version from the 2-fer
Santa Ana Winds (KTSA) or Santa Ana Winds (early version with no stupid spoken intro)
Sandy or Sherri Shhe Needs Me or She Says that She Needs Me
Wind Chimes (Smile) or Wind Chimes (Smiley)
Graduation Day (studio) or Live version
Pamela Jean or Car Crazy Cutie
Papa-Oom-Mow-Mow (live) or Papa-Oom-Mow-Mow (Party!)
Little St. Nick or " " (with Drive In backing)
Here today (regular version) or Here Today (Brian vocal only)
Keepin the Summer Alive (studio) or KTSA (live at Knebworth)
Loop De Loop or Santa's Got an Airplane
Aren't You Glad (WH) or Aren't You Glad (live in London)
Bells of Christmas or Bells of Paris
Let's Go to Heaven in My Car or Water Builds Up
Let the Wind Blow (WH) or the live version on the Concert album
The Little Girl I once Knew (single) or version on Hawthorne
Lay Down Burden (Imagination) or Lay Down Burden (Live @ Roxy)
Surfer Girl (studio) or Surfer Girl (Lei'd in Hawaii rehearsal)
Good Time (Love You) or Good Time (American Spring)
Wild Honey (album cut) or Wild Honey (Live version with Blondie on lead)
I'm Bugged at My ol Man (Summer Days) or the version in the It's Ok special where Brian starts coughing up a lung
Til I die or Til I Die (Desper long mix)
Endless harmony (KTSA) or 10 Years of Harmony
Sacramento (Usher) or That's Just the Way I feel (Usher)
Wake the World or Wake the World (live in London)
You're So Good to me (Studio) or You're So Good to Me (lei'd In Hawaii)
Dance Dance Dance or early take of the song
Lady (DW) or Fallin' in Love(American Spring)
Shortenin' Bread (LA) or Shortenin' Bread (Adult Child) or Metal Beach
Look or Song for the Children
Bull Session with Big Daddy (on the album) or the 20 minute version
All I want To Do (20/20) or All I want to Do (live in London outtake)
Come go with Me (MIU) or Come Go with Me (early 15 Big Ones outtake)
I'm So Young or early take of the song with Flute added
Breakaway (single) or alt. mix on Hawthorne or early version on EH soundtrack
I Know There's an Answer or Hang On To Your Ego
Lady Lynda (LA) or Lady Lynda (early version from MIU era) or Lady Lynda (Live at Knebworth)
Surfin' or Surfin' on SIP or Surfin' (Lei'd in Hawaii)
Island Fever original SIP release or Island Fever (UK release)
She's Just Out to Get Ya (American Spring) or How's About a Little Bit of your Sweet Love
Girl Don't Tell Me (SD) or Girl Don't Tell Me (Live with Al in Vegas)
Trombone Dixie or Had to Phone Ya
Had to Phone Ya (15 Big Ones) or Had to Phone Ya (American Spring)
Kiss Me Baby or vocals only version
Sail On Sailor (Holland cut) or Sail On sailor (live In Concert)
Do it Again or live in London or early version on EH
The Man with All the Toys (BB version) or Man with All the Toys (BW version)
Love to Say Dada/Water or Cool Cool Water or In Blue Hawaii
Trader (Holland) or Trader (live in Concert)
Summertime (Sharon Marie) or Summertime (BWRG)
Time to Get Alone (20/20) or Time to Get Alone (Redwood) or Time to Get Alone (alt. version on Hawthorne)
Sweet Sunday Kinda Love (MIU) or Sweet Sunday Kinda Love (American Spring)
Oh Darling (KTSA) or Oh Darling (alt. version on Get the Boot/Brian vocal)
Added:
Black Widow or Let's Do it Again
Don't Worry Baby studio vs. Don't Worry Baby from the In Concert LP
Cuddle Up (C&tP) vs Cuddle Up (45rpm mix)
That Same Song (15BO) v That Same Song (TV Special w/Double Rock Baptist Choir)
Midnight's Another Day (TLOS) v Midnight's Another Day (demo)
Heroes and Villains (Smiley) or Heroes and Villians (Lei'd in Hawaii) or H&V (live In Concert) or H&V (BWPS)
Thinkin Bout You Baby - Sharon Marie or Thinkin Bout You Baby (American Spring)
Vegetables (Laughing Gravy) or Vegetables (Smiley)
Sloop John B (album cut) or Sloop John B (other vocal, you specify)
God Only Knows (album) or GOK w/ sax solo or GOK with Brian on lead and vocal round at the end or GOK rehearsal in Hawaii on EH
Pet Sounds instrumental (studio) or Pet Sounds (live)
Caroline No (PS studio) or Caroline No (In Concert with Carl's lead)
Bluebirds Over the Mountain (20/20 or Bluebirds Over the Mountain (Live in London)
Caroline No (single/sped up/regular) or Caroline No (slowed down, "original")
Gettin' Hungry (Smiley) or Gettin' Hungry (Lei'd in Hawaii)
Do you Like Worms (Smile) or Roll Plymouth Rock (BWPS)
Wonderful (Smile) or Wonderful (Smiley) or "Wonder Bill" (Live on EH) or Wonderful (IJWMFTT) or Wonderful (BWPS)
Let's Go Trippin' (Surfin' USA) or Let'Go Trippin (Concert)
Desert Drive (Paley Sessions) or Desert Drive (GIOMH(
Their Hearts Were Full of Spring (Original demo/Hite Morgan recording) or A Young Man is Gone or Their Hearts were Full of Spring (Rehearsal in Hawaii) or Their Hearts Were Full of Spring (Live in London)
School Days (KTSA) or School Days (Live at Knebworth)
We Got Love (Holland outtake) or We Got Love (In Concert)
You Still Believe in Me (album) or YSBIM (In Concert)
Let's Stick Together (Sweet Insanity) or The Waltz (GIOMH)
Melt Away (BW 88) or Melt Away (IJWMFTT) or Melt Away (Demo from BW 88 re-release)
Spirit of Rock and Roll (early Usher version) or Spirit of Rock and Roll (live from 80s tv special) or Spirit of Rock and Roll (Sweet Insanity with Bob Dylan or Spirit of Rock and Roll (BW from Songs from here and back)
Loop De Loop (Landlocked early mix) or Loop De Loop (Al's newer mix from EH)
Save the day (Sweet Insanity) or Fairy Tale (GIOMH)
Hey Little Tomboy (MIU) or Hey Little Tomboy (Adult Child)
Still I Dream of It (Adult Child) Still I Dream of It (demo/IJWMFTT)
California Feeling (Beach Boys/MIU-LA era/most notably vocals are Carl and Al in my opinion) or California Feeling (American Spring) or California Feeling (newest BW version)
Don't Let Her Know She's an Angel (Sweet Insanity) or Don't Let Her Know She's an Angel (GIOMH)
Can't Wait too Long (snippet from Hawthorne) or Can't Wait too Long (TLOS)
Make A Wish (Sweet Insanity) or Make a Wish(GIOMH)
There's So Many (BW 88) or There's So Many (Early demo on BW88 reissue)
Rainbow Eyes (Sweet Insanity) or Rainbow Eyes (GIOMH)
Love and Mercy (BW 88) or L&M (IJWMFTT)
Gettin In Over My Head (Paley Sessions) or Gettin' in Over My Head (GIOMH)
Walkin' the Line (Usher demo) or walkin' the Line (BW 88)
I'll respond with my answers in the next couple of days