first lets talk about win rate. in regular games the win rate tends to be higher. which mean less variance overall which translate into less and shorter downswings over the long term.
if building a roll is your objective, i would go with regular games.
that being said, if for X reasons, you already built several bankroll in the past and/or know your beasting micros ( over big sample 100k+), well you could go with zoom, since you will get in a higher volume in shorter time.
personally i prefer to play full ring, then 6max, both regular game. you can table select vs pure fish and keep building that roll steadily. one advantage with full ring is that you can multitable easily.
thats it for me... good luck out there