rock river vs. S&W M&P

Hello all,

I am new to the AR world, as alot of posts here seem to say. I have been looking for awhile and am now looking seriously. I saw a Rock River Predator Pursuit today at a gun show and it was sweet. 20" stainless heavy Wilson barrel, round forearm, in the flat top configuration. Nice trigger too. But the guy didn't take trades so, not having $1000 handy, I left. Went to a gun shop that is a dealer for RRA, and he also had a good deal on Smith and Wesson M&P's, flattop, 16" barrel, and a collapsable stock. I could get for $799 after rebate. Not bad.

Now, here is my problem. I really like the RRA. But pricey. S&W ok. Don't really like the skinny barrel and collapsable stock. My requirements are good accuracy and reliability. I am NOT going to accessorize this thing like I am going to combat. I handload and intend to taylor a load to the gun. I am going to use this gun for strictly target shooting, have a big scope on it, and the RRA has a 3/4" MOA guarantee. But the guy swore to me the S&W would shoot just as good. And could I swap out the collapsable stock for a fixed one? So, who has experience with the S&W? Some opinions would be greatly appreciated.