Your forgot Disposable Heroes and Trapped Under Ice you fool!
Angel Of Death probably wins for me, that song IS thrash. Disposable Heroes is one of me favourite songs overall though. Holy Wars also rates very well. The others I voted for were Battery, Master Of Puppets, and Blackened, but most things there could get a vote.
I'm also surprised at the lack of Iced Earth in this poll, but I guess they aren't usually lumped into the same group as the classic thrash bands. Still, they rocketh.
You also didnt put in anything at all from bonded by blood by exodus! FOOL! greatest thrash songs and you dont include anything from probably the greatest thrash album ever!
I think Tornado of Souls is the best thrash song ever... but seeing as that isn't there I voted for Battery because that is the 2nd best thrash song ever.