The only downsides to a PS3 are;
1. Noise during playback, you'll notice when the fan spins up
2. Bluetooth controller, not really a 'pretty' item to have a game controller laying around to use it. There are adapters and things you can get to convert it to IR for a universal remote though but extra cost for these things, etc.
3. Noob friendliness with the interface, not really difficult to use, but it's not usually just a pop a disc in and it plays kind of thing.
But if none of these matter, yeah, go PS3. I only have a Panasonic 220 because I needed something more techno-illiterate friendly.