im on my first pair of aces, for almost an half year now and im about to order my second pair.
i ride mine with bones medium bushings and khiro soft pivot cups, its the perfect truck for me and i was on indys and thunders before.
I've got a set of 44s with bones mediums, soft khiro cups and magnesium plates, epic combination; I've ridden them on 8.125"/8.25"/8.38"s
On my 8.75" setup I use a set of 55s, bowl use only.
A couple of years ago I rode some 03 lows with bones hards, seemed to work well
Now as far as comparing them to other trucks, the new V3 Theeves w/out the top washer are really
stellar trucks and I prefer them to ACE on street as they are more stable/less squirrly, but if you skate tranny, Aces are untouchable (having skated stage 11/thunder/theeve in tranny).
One thing of note, if you ride loose and use the kihro aluminum insert bushing ACEs will destroy them.