I think MA RX6s gives a good bang for the buck compared to the Paradigm S60s, which is probably what the dealer you spoke with is looking for.
The Paradigms are easier to drive, but neither should be a problem for your AVR unless you like to listen at very loud levels.
Again, it's really a matter of personal preference and cost, not what people here suggest. But....
If you can, look at Dynaudio, Focal, Kef, Swan, and Philharmonic. All are great speakers, but all sound different.