One is better than the other, Bosh plays less minutes and gets more rebounds and blocks, don't see how they cancel each other out when the rate they're doing it at is not the same. Bosh is a much better PnR defender, the Heat might get exposed inside because of his lack of size, but rarely does any team just abuse them off PnR.
Here's the thing, you're trying to use their numbers now and how they play now as a gauge for who is better but ignoring the situation that is causing Bosh's game to be the way it is. When Bosh was on the Raptors he created more offense for himself from isolation than Aldridge does now

You put LA with LeBron & Wade and his touches go down, he's scoring 21ppg on 19 shots a game, scored 21ppg on 17 shots per game last year, Bosh gets 19 on 14. And when Bosh was a number 1 he got 24ppg on 16 shots he just applies more pressure and gets to the line more. Aldridge's post game isn't great enough to just overlook the fact he doesn't get to the line much, people call Bosh soft but Aldridge makes him look like Buck Williams.
It's not a matter of going far, he's simply better than Aldridge in nearly every way you can think of. LA is not a post presence, he scores from the post sure, but he's not dangerous from there, and if the Heat actually ran some of the isolation sets for Bosh that the Raptors used they'd have a "Post presence". I mean, Bosh scored more points in the paint on the Raptors than Aldridge does right now