air isn't going to do anything to help with alignment issues, that's for sure
ride quality is tricky with bags because most times while at a reasonably low ride height it'll be very soft & bottom out easily, and at raised most way up it'll then ride nice because the bags will have a much stiffer effective spring rate like a sport spring would, but at that point it'll look way to tall in most cases, it's very tough to get a stiff enough ride at a low enough height. in the middle it will ride ok but softer, which also allows more body roll & sway, so in the end you'll sacrifice handling & ride for stance... depends what your priorities are really... coils would be better from a performance point of view