[sperry]

I can't choose just one, or even five... I'll do a top 10, or, as close as I can get to one...:

Cruel Angel's Thesis(Eva OP)
Hemisphere(RahXephon OP)
Realize(G Seed 4th OP)
Believe(G Seed 3rd OP)
Invoke(G Seed 1st OP)
So Much Together...(G Seed 1st ED)
Sore ga, Ai Deshou(FMP! Fumoffu? OP)
Meteor(G Seed insert)
Dimension of Love(Tenchi Universe insert)
Trust(Vandread OP)
Shell(Witch Hunter Robin OP)
Ao No Requiem(Samurai Deeper Kyo OP)
Through the Years and Far Away(Voices of a Distant Star theme)
White Reflection(G Wing Endless Waltz theme)
A Thousand and One Nights(.hack//LIMINALITY 2nd OP)
The Sacred Moon(Shingetsutan Tsukihime OP)

Alright, so it was 15... I can't decide on anything for my life. ^^;;