Do Integrateds sound better than Receivers?

I have a Rotel reciever as amplification for my system, but would like to upgrade to an integrated amp. One reason for this is that I don't listen to my radio. But the other reason is that I've been lead to believe that an integrated amp will sound better than a receiver. Is this necessarily so? How might having a tuner in the same chassis affect the sound quality of the amp? For example, would a Rotel integrated amp sound better than a Rotel receiver?