I am in the same boat as you, Dames. Personally, I love my V35 coupe but will be needing more practical car in 3-4 years time for expanding family, plus abit of turbo power for driving pleasure.
For that, I would choose a 2010 STI hatch. They are very spaceable (Groceries shopping, airport transfer, baby pram, etc.), not 100% track purpose like Evo's (Good for city driving and long distance drives), and..oh my god..they are so damn sexy in a flash with those pump out guards. All you need to make it outstanding is a drop, carbon fibre goodies and exhaust. Sure it looks like a done-up Hyundai or Kia, but everybody knows it's a STI now.
The sedan and Evo 10 looks nice too, but not as practical as hatch for my likings. I would only go for a STi sedan or Evo if I have another daily (Hatchback or 4WD) and have extra cash to spend on track works.