(imo) the TRP line is pretty solid, for $1500+ it seems to me to be a good balance between fit/finish/functionality in 1911s. Comparing it to STI - I believe the STI is a notch or 2 higher in Fit/Finish...close in functionality ( as I have never had a minute of grief from either), But all STIs for sale will be used and you would have to know a bit about 1911s to make sue you were not getting a problem child.
Compared to Wilson, the price point is significantly higher for new, used comes in closer to the new TRP pricing. My Wilsons are solid guns, adequate in fit/finish/functionality, compare nicely to my STIs.
Dan Wessons are more apples to apples "production" guns. The higher end DWs are a little nicer fit/finish, but pretty equal in functionality.
If you like the 1911 trigger, the STI, Wilson, DW will probably have a slightly smoother/lighter trigger, but take up is going to be similar.
I think there will always be someone who has had a good experience with a brand and someone who did not, for various reasons - most of which are personal preference and maintenance (imo).
The customer service for STI and Wilson set them apart (in my experience) from many other brands. Staccato (per their statements made to me) will honor the STI lifetime warrantees...but I have not tested it.
I have had really good experience with Kimbers as well, but mine are all much older models (I understand some people have had pain with the "II" models).
If it is your first 1911 (?) I am not sure how much of a difference you will actually be able to "see" (other than finish), for example, how light a trigger is, vs how smooth it is vs take up and let off in a series 70 type 1911 is really a personal thing. If you are used to a Glock 17.3 almost any (decent) 1911 trigger will feel "good". You may lean toward an all steel for lengthy range time, or alloy for carry, etc.
Everybody seems to offer a 1911 these days, and a lot of the current machining technology is capable of good tolerances. But just like an AR, the 1911 quality depends not just on machine/manufacturing excellence, but assembly. The one gunsmith (start to finish) "custom" houses tend to offer excellent service and a final product that is more likely to deliver against their claims.
I have a Springfield "Government" model, all steel that I have had for many, many years. I have worked on, and learned on that gun over time and love it. The finish is parkerized so not a flashy gun at all. But the fit and functionality is excellent. If I could keep only one 1911 it would be that gun. Even though I have quite a few 1911s that are a lot more flashy/attractive finish and grips, I shoot the government as well or better than the others.
Nothing wrong with buying a gun that will impress the onlookers/other competitors - but when the targets fall faster and the groups are tighter, that is what impresses me.
At some point the additional $ is all about finish... and personal preference - yours(!) not mine or anyone else's!
