From what I've seen, the Hobbyzone Super Cub is a good RTF foam plane for beginners. It's only a 3-channel, though, (throttle, rudder, elevator). The pod & boom planes with pusher props seem to be pretty good for beginners as well, when you nose them in, you don't damage the motor & prop like you do with traditional front mount motors. The Aerobird 3 and the Aerobird Swift fall into this category, they are both three channel as well, but the swift has ailerons/elevator controls, while the Aerobird 3 has rudder/elevator.

Here's Horizon's page with all of these planes listed:

http://www.horizonhobby.com/Stores/P...52&BrandId=HBZ