I suppose it depends on whether you will be watercooling as to which case you choose tbh. If you are, then fitting a 120.3 rad in the case is obv a key consideration. (The Haf 932 or similar has loads of room for a triple in the top.) If not, or if you just want a basic loop, then fitting a .2 rad may be enough, so the CM690 II is fine.... Think you can just about get 2 120.2 rads in that at a squeeze (- HD cages) .
I think though, the more time you spend around here, the more you will want to get wet... If so, the size of the rad you can fit in the case is something to think about.... 1 big rad = Less fans, less restriction, less money, more HD cages!