I bought a Remington R1 Commander a couple months ago. I also looked hard at the Ruger SR1911 Commander, Colt Commander and Remington 1911 R1 Carry Commander. All are fine pistols but only the R1 Commander came in a classic 1911A1 format much like my Colt Series '70 Government Model that I got in 1976.
I know most people prefer the long skeletonized trigger, skeletonized hammer and beavertail but I like a classic 1911A1 like my old Colt - short trigger, spur hammer and slightly extended Series '70 grip safety that doesn't bite me. Of course it also has the A1 arched mainspring housing but I prefer the older pre-1911A1 flat MSH. Only the classic R1 versions come that way (including the flat MSH) so I bought that. It also has the old style WWI double diamond wood grips that I love. The cheaper price was a factor too - $522 locally minus a $75 mail in rebate (which came last week). Anyway it's a great Commander, very tight, very accurate and reliable.
I love my full size Colt but have to say a steel frame Commander is a great 1911 to shoot a lot. Recoil is softer than the lightweight aluminum frame models but it weighs about half a pound more. Either way the Commander is a perfect size and the Ruger would be an excellent choice for most people.