Put my vote in for the ArmaLite. I think it is the best for the money (on the left)......
I've said it before...when I take these two to the range, the AR10 is a friggin' rock star. I don't know why, as the LWRCI with ACOG is a much more expensive rig. But that big rifle ALWAYS draws a crowd. First time I took it to the indoor range, everybody including the guys behind the counter put rounds through it. Lots of fun.
When I was shopping for a .308 platform, ArmaLite was the name that kept coming up as the one to have for the money. From the people I trusted, anyway.
Never a failure of any kind. Several thousand rounds through it. Mostly at silos at range, but I always finish the day up at the plinking range for a little more rapid fire fun, so it handles that too.
These are all my personal experiences...YMMV.