That's a very varied group of rifle options you have there. Sounds like they are all on your wish list, and you're trying to figure out which one to get next. If that's the case, I'd say get the one least like anything you already have.
About a year ago when I was in a similar position, I bought a RRA 20" Varmint (bull barrel) AR, bipod and scope. About a month ago, I bought a Remington 700P LTR, bipod and scope. Both rifles are fun to shoot, the 700 is more accurate. For me, the 700 is also much more practical, weighing in at 7.5lbs with the 20" fluted barrel, it's a great hunting rifle for brush hunting, and can also easily handle long shots should one arise. Since I don't explode gophers at 300 yards, the RRA doesn't really have a practical purpose for me. I doubt it's that much more accurate than a regular 20" HBAR AR, so the fact that it's so out of balance/barrel heavy that you can't shoot it off-hand, makes it a kind of limited gun, IMHO.
So if I were to look at what's left on the list, I'd get a (Scout Squad) M1A... matter of fact, I'm starting to think that a camo stock would make that a real interesting option. On the other hand, if I could ONLY have ONE of the guns you list, it would be the 700.