Your question is probably too broad.
Especially, would try posting the receiver portion under an Audio heading, and even then it is not realistic to expect very many people to take the time to look up 6 different models - or to Just Know the differences between them.
As for the panel, since you already know that you plan to purchase from Best Buy, what panels do they sell that meet your base requirements? What do you like / dislike about these?
Now post a couple of specific model numbers & you would stand a better chance of getting some at least semi-informed opinions.
Might also try taking a look at some of the Gaming forums - understand that owners sometimes post their opinions of various panels As Gaming Panels...