Well, after revisiting and playing a number of games on MLB 10 (after about 100 games of frustration on 12), I've concluded that I'd like to see:
Gameplay like 10, with the "look" of 12...
I play classic pitching / zone hitting / vet or AS / Psychobulk's sliders (or close to 'em)...
Shocking how much control I have as a user over 10, where as 12 just seemed to have it's own agenda...