tren hex is a better bulker (i.m.o.) its more anabolic then the other 2, but for me tren ace is a far greater cutter. ive run tren e a few times and just dont like it very much, its so much weaker then tren ace for cutting fat (even at a gram a week) i really like tren hex for adding lbm but will use tren ace for cutting fat.
(i do get fat burning effects from the tren hex, just not as great as the tren ace)
hope this helps