For a carry gun?
CBOB all the way!
You're really not getting much more than a name on the Colt XSE Combat Commander, the sights aren't that great, the beaver tail is crap, it's not fit as nicely as the DW, the finish isn't as nice as the DW, you don't get the checkered front strap, and of course, no bobtail.
Regarding the mags, you're probably going to get better mags with the DW, and when you need more mags, you can just buy quality 8rd mags, so that's not really an issue.
Get the CBOB.
If I could trade my Colt 5" XSE for a CBOB today, I'd do it hands down no regrets.
If you were just buying to have a 1911, I might suggest the Colt for the collectors appeal.