ive only driven a stock forester xt. but i have driven tons of wrx's and sti's, with tons of different suspension setups, ive spent plenty of time on track trying to get my friends 7 grand worth of suspension components dialed in on his STI, now i dont have much time working with AWD cars, but the entire time we struggled with getting rid of its understeer problem, in the end we couldnt get rid of it without fucking up some other aspect of its setup and had to settle. we talked with a friend with over 100k into his time attack STI, and it was the same story, they could get it to rotate on entry but if you tried to get to early power it would go straight to understeer. if you were extremely patient and did a slow roll to power then it would take it, but thats not ideal.
anyway im talking about stock/mostly stock cars anyway. you can get any car to handle pretty damn well, but the fact is that they handle pretty shitty stock as soon as you start to push them.