The Tiguan is cramped, desperately overpriced, not as efficient as its newer competition, and I think the interior is drab and ugly. Its liftover height is ridiculous, and it's got less room than a Fit inside. It does ride well and it has excellent power, and the sound system is great, but it's not a class leader in any category I can think of. Between the two you listed, if you will not consider anything else, it'd be the one to buy....but:
The two most fun to drive small SUVs on the market today are the CX-5 and the Escape. They both better the Forester and Tiguan by 5-10mpg on the highway, they're both a better value, and they're both dynamically quite accomplished. The CX-5 is let down a bit by its modest power output and performance. The Escape is more powerful, not much less fuel efficient, but a little more expensive. Both are excellent drivers without the compromises of the other two.