My advice is to buy one that you can put your hands on....
Though I like and own a Colt 1991 stainless Commander, and I think Colt makes 1911s that run very reliably, and they have supposedly re-tooled their production with more/better CNC processes to improve quality, there are a certain small percentage of Colts floating around out there with cosmetic blemishes.
Pay a little extra to buy local and put your hands on the gun b4 you put money on the table.
Then you can inspect it and you will not be dissappointed.
You get a lot of extras with the XSE...
front cocking serrations on the slide (which some love and some hate)
lowered and beveled ejection port (increases reliability)
extended-ambi safety
Novak rear sight
dovetailed front sight.
lightweight 3-hole trigger.
Some don't like the duck-bill style beaver tail, and unfortunately you can't get a Commander from Colt with a high rise beaver tail. But these are mainly for guys that prefer the thumb over safety, high rise grip anyways. How important this is is a personal question. And when it comes right down to it, even the Smith & Alexander and Wilson high rise beavertails do not afford the same level of grip elevation as the Ed Brown. So if you really want the best Beavertail, you're going to have to have a smith fit an Ed Brown regardless (donning flame suite in anticipation of an irrate Wilson owner).
When you inspect a gun at the gun shop, you want to specifically look straight on at the muzzle (after checking it clear of course) and evaluate the thickness of the walls on either side of the recoil spring cap (directly under the barrel) and whether it appears to be on centerline with the barrel.
I almost sent my colt back because mine is off ~.015" (but what is lost on one side is added to the other so it winds up being noticeable. I am so glad I didn't, as the gun has been 100% reliable and it's strictly a cosmetic thing, which most folks would not clue into if they had not been coached to look for it.
None the less, if your going to drop ~$900 on a pistol, you'll want it as close to perfect as can be.