It's comparable to the CQB in many ways. What the CB has that the Springfield won't is:
1) The Wilson is dehorned. The Springfield has really sharp edges. They can and will eat up holsters and you probably don't want them on a carry gun.
2) The CQB is a Wilson Combat gun. The Wilson name has a lot of, well deserved, cache.
3) The CQB comes with a lot of cool stuff--Wilson hat, gun rag, video, grease, etc.
Of the two, I would probably buy the Wilson. Why? Because I already have a Springfield. The TRP plus the cost of dehorning (and refinishing if nessessary) will cost you as much as the CQB. The CQB will have something like a 6 month wait time.
Just one note, a buddy of mine got his CQB about two months ago, and has noticed that there is a fair amount of holster wear. Not a big deal, but annoying on a $1,700 gun. He did, however, just order another CQB from Wilson (with a shorter barrel), so it isn't a big issue to him.
Pro is another league that the TRP. It's built from the ground up and is really a custom pistol, not semi-custom. It's dehorned and is the pistol that passed the FBI tests, don't think Wilson's did!
I own a Bureau model, which preceeded the Professional, but is in essence the same gun. I LOVE it and shoots great and has been totally reliable and 1" accurate. I owned a Baer, not a Wilson though, and this blows away.
The SRP was the pistol before the TPR/PRO...The folks that "Have" them swear by them...Some who don't, don't have much to say...There are quite a few forum members that opted for the PRO in the recent months...The ones I've heard from LOVE THEM!!!
Got the Professional model now I'm getting a Professional model built with the shorter Champion slide from the Springfield custom shop. But this was my beginning to 1911's so I have nothing to compare it to.