Ok...lets think about it seriously....if i was to choose between an Impreza STi or Forrester STI....i would pick Impreza everytime because that is what i'm looking for..more focus performance car..
But if i wasn't looking for a performance saloon but a really rapid 4 x 4 then i would seriously consider a Forrester STi no doubt..awesome in the straight and really good in the bends(not as good as Impreza) then you are on to a winner GUS..
Hope that helps[:S]