Personally, I have always been an STi guy more so than an EVO guy. That said, I have not driven the new EVO, hopefully I will, but no matter what it is like, the 135i is going to be the more liveable machine. I have done the uncompromised driving machine thing and while some days, I was through the roof with excitement, every other day, I got tired of it. So, for me, I need something that will be relaxing when I need it to be, but exciting enough on a back road; that's what the 135i is.
But, for you, drive 'em both and see what you like.
BTW, I love the Recaros in the EVO. I really, really want those seats.