Not as fanatic as the fanboys from a certain Korean brand
A little background - was in the same boat as you were roughly two months ago - was looking for new cars for both me and my wife - and we finally settled on the Forester for her (last minute call - we had already placed an order for an Impreza sedan), and a Monty for me...
In the process we checked out practically all cars and SUV's within our price range, and I dredged up old acquaintances working for dealers to try to get some inside info and advice....
But if I were you - if you're really deadset on choosing between the two (Fortuner and Forester), try to hold off several months (Fortuner is primed to get a facelift - its speculation if it'll be major or minor, but the way they're discounting the Forts now makes me think it'll be a major lift, and considering the way they're being walloped by Mitusbishi now....) - and make your decision when the new one comes out. After seeing the two then, you should have no regrets. The Forester also recently got a facelift now btw (but its really minor).
As for me, I'm pretty happy with our Forester (it still hasn't reached its 1600k pms, so i can't say if something'll pop up in the future) - no complaints so far on the handling, ride height, visibility, safety and entertainment features, and power (brought it Subic for some "break-in"...damn

). Off roading I have no experience with (not really my thing).