Speaking from experience I can tell you that aftermarket support only goes so far with any Subaru but thats just where custom creativity steps in. That said every week there are more and more of us taking our Subarus where they were never intended so aftermarket support is slowly increasing. Most recently CBI realized the profitability of the segment and has been releasing Prinsu roof racks for the newest models.
I'm partial to newer Subarus because they get away from the EJ line of motors, 2nd gen CVT transmission, come with a little more ground clearance out of the box, and are available with X-mode which can dramatically improve traction over technical terrain as well as a few other features. After that its a matter of desired size and features. I test drove a Crosstrek and felt I'd grow out of it in a couple weeks. The Forester has always been the bastard child but offers the largest greenhouse, best approach/departure angles, and has typically always been the best value but the sticker on the newest ones are getting ridiculous. They're finally enjoying the success of the 'crossover' market and are feature rich and attractive. The Outback was my choice due to its size, features (X-mode is standard), lower roof line, and the fact that I have a soft spot for wagons haha.
