As I've mentioned a time or two before, the stock Delta is definitely not my favorite 10mm, even though I have four of them. One I sent off to have built right, and the other three I bought just because they were at the gun shop when I had some disposable income. The pro is the provenance. Colt was one of the first in the 10mm game, and it's a Colt. Otherwise, as everyone else has said, pretty much everybody does it better.
I have some fancy 10mms, including a long-slide Nighthawk, a Wilson CQB, the aforementioned fully custom Colt, and a factory-custom Dan Wesson. But quite honestly, I really like my Kimber Eclipse. And it was cheap. Carried it for a while and sometimes still do, and I still shoot it fairly frequently.
Anyways, Fancy Delta:
Not Fancy, but Delightful Kimber:
And the 10mm 1911 collection: