My want to check the AVR forum about the 616. Seems it still has issues.
As for "best" and "system"- hard to say without what you plan to do with it. Movies only? Music only? Combination? 2.1, 3.1, 5.1, 7.1 or .2 for all?
Then there is the whole subjective take on whatever someone recommends. It may sound good to them but not to you. You REALLY need to try and listen to as many speakers in your price range as you can or plan on spending considerable time buying and possibly returning many speakers you want to demo in your room.
Klipsch RF-62II, RC-500, RS-400, SVS PC12+,
Def Tech SC8000
Harman Kardon AVR 1600
PS3, Apple TV, Sharp 70" Qattron