Rockets' advantage is actually in Howard, but I am not sure whether he's 100% now. He has to remain his cool and keep fouls down. We could see some Twin-Tower time in that series.
X-factor would be Lin. The good, he's been playing very well against Spurs, so psychologically, Jemrey will be confident. The bad, Lin hasn't had a single playoff game with positive experience. As inconsistant and bone-headed as Lin sometimes can be, he needs to maintain a healthy balance between aggressiveness and playing smart.
Go Rockets. I won't put money on them, but my heart is with them. This is also the best matchup scenario for them.