here's a vote for yamaha. you're going to get replies voting for each, more than likely. personally, my opinion is that the yamahas are built ultra solid, offer superb performance for their category and come from a company that i think knows a thing or two about music reproduction.
the rx-v2700 is my choice. i have the older rx-v2500 and love it. my dad has the rx-v2700 in a large dedicated theater room and loves it.