Front wheel bearing noise is really tricky to diagnose. It does not always make noise when it is loaded - sometimes it makes noise when UNloaded. I (and others) have been fooled before and changed the wrong dang side only to find the noise still there and had to change out the other to fix the problem.
CSFiend wrote in an earlier post:
Another way to check -- set the parking brake, put the car in neutral, and using a floor jack, lift the front end of the car. Gently rest your hand on the coil spring and spin the tire. If it'* the wheel bearing, you'll feel it grinding through the spring.