I love Rotel, Classe and BAT but there is no way they will out perform a pro amp. There is a bit of hassle when dealing with pro amps such as possible ground loop issue (which can be addressed for 40 bucks) and figuring out how to auto turn on and off (which can be fixed for 100 bucks).
I use a consumer amp for my front 3 channels but if I was doing it over, I would have saved money and went pro. The biggest hassle to me is if you are trying to power more than 2 channels you need more than one and each one has to be plugged in. The beauty of using an AVR as a pre-pro is you can use the power for the canter and surround plus a second zone.
Another option is Emotiva, which are dirt cheap and most people love them.