They're both great pistols, I've got one of each, but for carry (CCW) purposes, at least now in my old age...they're heavy! Good leather makes a difference of course, but that 3/4" shorter barrel on the Commander isn't much. As Rev/Armadin pointed out, it's the grip length of the Officer's Model that makes it a better carry piece, not the barrel length. A better "Officer's Model" in my opinion is the Sig RCS model...I've shot three of them, & son #2 has one for carry. I thought the shortened frame, alloy at that, would make it difficult to handle...I was wrong...with the longer barrel of the Commander, and that 1/4" shorter grip, it's a sweet gun...but takes some getting used to with that slightly odd Sig take on slide shape. See the 3rd pic below.
The Rugers with steel frames and a full magazine and one up the spout weigh the following: 5" Gov't model = 44.5 oz, Commander = 42.8 oz according to my postal scale. Not light by any means. And Colts are within a half oz. at least in my Combat Commander and Gold Cup .45 models...loaded of course.
Where the Commander shines, at least in my use, is its ability to tuck into my right rear jeans pocket for informal carry here on our farm. The longer 5" barreled model is just too long and tries to topple out if I attempt to carry it there. And for me personally, I've found that the Commander balances a bit better in the hand (in the steel frame model) and, too, I've found no real world difference in accuracy despite the 3/4" inter-sight distance shooting from a field position, ie. not off bags or a rest.
Wish Ruger would make up a run with the light weight alloy frame, gosh knows they've got experience thataway in heavy caliber sixguns; shouldn't be much of a leap to cast and machine out a 1911 frame. All in all, if given a choice between the two lengths, in Colt or Ruger models, I'd pick the Commander every time. Here's some gun-p*rn for ya. 1st pic as issued....2nd with three fitted slides in 9mm, .38 Super and .22 lr. Pretty versatile, tho both 1911 Tuner and Rev are not fans of off-caliber 1911's...LOL...I like 'em!
HTH's Rod
New perched on our fence rail.
My 4-caliber Ruger CMD.
Sig's excellent RCS model. I like the tritium sights.