The first Pokemon opening will always have a place on my top list
other than that, there's
Full Metal Alchemist's Ready Steady Go
YouTube - FullMetal Alchemist Op 2 - READY STEADY GO
Full Metal Panic! The Second Raid's Minami Kaze
YouTube - Full Metal Panic-The Second Raid Opening Theme(South Wind by Mikuni Shimokawa).avi
D.N.Angel's Byakuya ~True Light~
YouTube - DN Angel Opening RAW
Black Blood Brother's Ashita no Kioku
YouTube - Black blood brothers opening
Bleach's Houkiboshi, D-Tecnolife, Tonight Tonight Tonight, Rolling Star, Baby It's You, ALONES, Tsumasaki, After Dark, Tane wo Maku Hibi, Kansha, Chu-Bura...a lot from that one XD