Evo if you wanna go fast, sti for comfort... It's that easy. Sti has softer seats (that fold under hard turns), better int layout, more low-end torque(2.0 vs 2.5... Duh), and softer edges in the ext design (if your into that). Everything else the evo dominates in. Go over to the evo and sti boards and you'll find a bunch of guys switching from sti's to evo's simply for the performance reasons as the sti's drivetrains are far weaker. The evo can make 400whp+ reliably with simple bolt ons and stock turbo and run low 11's-high 10's. I'm still on completely stock block, trans, transfer case, and diffs making over 500 whp reliably on street gas, that is an imposable goal for any sti ( or Subaru) ever built. Oh and hadling...Evo also holds more time attack records world-wide that any other 4door car ever made. Read or watch any review between the two and 9/10 the evo has won and been the benchmark many years in all countries and will be for years to come. Flame on sti owners... Lol