Just because I'm told I have the weirdest taste in pairings, I had to categorize my thoughts on different pairings. I would do ALL of my pairings, but that would take me all day to type out. XD

So let's get the obvious ones out first.

My favorites :love

Grimmjow/Orihime (O RLY?!)
Renji/Rukia
Ishida/Orihime
Gin/Rangiku

Pairings I LIKE
Szayel Aporro/Cirucci
Byakuya/Yoruichi
Yoruichi/Soi Fon
Ichigo/Nel
Ichigo/Tatsuki
Ichigo/Ishida
Ichigo/Orihime (even if this one is getting really "meh" for me lately)
Nnoitra/Nel
Nnoitra/Halibel
Szayel/Nnoitra
Kenpachi/Unohana
Byakuya/Rukia
Hitsugaya/Karin
Szayel/Nemu
Shinji/Hiyori
Ikkaku/Mizuho
Yachiru/Wanderweiss
Pretty much any Orihime/? pairings that aren't listed anywhere else.

Pairings I like for the lulz
Byakuya/Ulquiorra
Ulquiorra/Matsumoto
Yumichika/Chizuru

THREESOMES!!! :nuts
Ichigo/Orihime/Ishida or ANY combination of it.
Grimmjow/Orihime/Ichigo
Renji/Rukia/Byakuya
Halibel/Nnoitra/Nel
Grimmjow/Orihime/Ulquiorra
Cirucci/Released!Szayel/Nemu

Pairings I Dislike
Ulquiorra/Orihime
Aizen/Orihime
Ishida/Nemu
Grimmjow/Anyone not Orihime (Seriously, I've TRIED to ship him with other people, but my brain won't process it. And it's not because of a pairing bias, because I ship Orihime with nearly everyone)
Renji/Orihime (I love both of them individually, but the pairing seems like a cop-out for anti-Renji/Rukia people)
Hitsugaya/Hinamori

Pairings I HATE
Ichigo/Rukia (No offense to the shippers, but it's just not my type of pairing. :\)
Pretty much any yaoi that I don't have listed.

Any other pairing I don't have listed is either "meh" to me, or I just didn't think of it. You can ask just to be sure! :D