I can't think of the brand of the wireless bridge right now. The reason I like the powerline solution better is simple, speed.
I play Xbox 360 online and the netgear av500 is as fast as plugging directly into the router.
If you plan to stream hd video wireless can become a choke point.
However, if you are only going to use it for thigs like pandora, or other online music services, wireless would be fine.