Android version will be better
Android version will allow in-app purchases, and probably controller support will be better. And having 4 cores on the Prime means there will be enough cores to handle video, network and game controller data.
But no need to overhype it. Even without lag/offline issues, games designed for a 20+ inch display are hard to play on a <10 inch tablet. Probably get sniped and never see who shot you. LOL
Games like Fallout and Skyrim need a large screen to make out the detail and find stuff. And in RTS games, units will be way too small. The eye strain is gonna be seriously bad.
IMHO, games designed for a tablet with proper (i.e. bigger) fonts and objects are better. But I guess people want to know it's _possible_ to play PC/console games on a tablet, even if it's not any good.