I forgot all about this one, but I do like this one too.
JUSTICE BEAM, GO!
Oh shit, I forgot how much I like Rurouni Kenshin... I was always disappointed that Sanosuke never really got to use the zanbatou. It was also probably the first anime I saw which actually had a strong female lead.
edit: that is infuriating. I had like, 4 openings here and firefox crashed. I'm not finding them again.
Valkyrie Profile (PSX) - fucking awesome
Claymore - dunno why I like it
Macademi WAsshoi - weird as shit, but stealth awesome
- The second episode. I used this because it's a good quality post.
Spice and Wolf - not the OP itself, but I really love the song - Tabi no Tochuu, if you're interested.