I think I've got way different tastes than most Utada fans. XD (And sorry if this conversation is over, but I can't see any of the posts on page 23 for some reason, so this is based on what I read on page 22.)
In my opinion, DEEP RIVER is Utada's best album-- but the older it gets, the harder it is for me to listen to it. I still love it though. Does that make sense? XD Anyway, I also really like Distance and This Is The One.
TITO as a whole album is awesome for me. There isn't a song I don't like, and the only song I didn't rate five stars was Automatic Part II and I think that's just because I had such high expectations for it, being the follow-up to Automatic. (I guess I should've learned from HANABI ~episode II~ that sequel songs aren't as good as the first for me. haha)
On the opposite end of the spectrum-- I dislike ULTRA BLUE and HEART STATION (which seems weird because it seems fans of DEEP RIVER love those two.) I only like the single tracks from UB (including This Is Love.) The rest of that album was a disaster for me. It was way too synthy and came off forced to me. On HEART STATION the only tracks I like are Prisoner Of Love (thanks to Last Friends) and Niji-iro BASU. The rest of the album was BLAND. Idk, I guess I'm just weird.
My favorite tracks (random XD):
Spoiler:
First Love: Automatic, Movin' on withot you
Distance: Wait & See ~Risk~, Addicted To You, Drama, Can You Keep A Secret?, HAYATOCHI-REMIX
DEEP RIVER: SAKURA Drops, traveling, Play Ball, Hikari, FINAL DISTANCE, ...just, the whole album. XD
EXODUS: You Make Me Want To Be A Man, Hotel Lobby, Tippy Toe, Devil Inside
ULTRA BLUE: This Is Love, Keep Tryin', Dareka no Negai ga Kanau Koro, Passion, Be My Last
HEART STATION: Prisoner Of Love, Niji-iro BASU
This Is The One: Merry Christmas Mr. Lawrence - FYI, This One (Crying Like A Child), Me Muero, Come Back To Me, ...pretty much the whole album for this one too.
There isn't really an Utada song I really really don't like besides WINGS.