I will be very sad if MOP wins. It's overrated.
Seconding 1985's superiority, btw.
It's the second (or maybe third) best on the poll. That some misinformed fanboys consider it to be the most innovative and important album evar does not take away from its quality.
... I actually consider it the most overrated thrash metal album of all time right there.
It is for sure not worth calling the greatest Thrash Metal album or the greatest Metal album in general. That's just absurd. It's great, but not that great.
What thrash albums would you say aren't absurd to call the greatest?
85 is better.
Reign in Blood. Pleasure to Kill would be second.