Grimmnel is one of my favs. It's actually not that crackish and there are quite a few fics on it. I can just see these two bickering all the times. Grimm tries to act all tough and nasty, but then get's whacked over the head by Nel for his stupidity at times.
And then I support Ichihime and Renruki. I like renrukia a lot, as Renji would have a harder time revealing his feelings to Rukia, seeing as he doesn't want to get killed by his older bro and whatnot.
I also support Hanataro/Hinamori, Komamura/Soi fon (friendship), Kenpachi/Unohana, Shunsui Nanao, and Ikkaku/Isane (don't kill me!).
Yes, Furosuto means Frost in Japanese.