I wouldn't have current bose or polks in my house even if they were free so that puts them both in the same boat. Which one is worse is a toss-up
You can't drive the lsi's with a avr because they are 4 ohm, power hungry (+200 wpc), inefficient, and hard to drive so that rules out 99.9% of the population.
Polks vintage speaks (1980-90) are audiophile quality tho and my house is full of them
http://www.polksda.com