First and foremost .. A CAVEAT: I personally hate the term "Clone." I don't actually know whom came up with it, but it would be my wish, we first "Draw and Quarter" that Scribe. There, I feel better now.
I look at the discussion from the standpoint of a Mechanic. I don't collet anything. I have, however worked on Single Action Six Guns for a bit over twenty years. 20 years ago, Uberti manufactured crap. They worked .. sort of but required a lot of almost remanufacturing. Since the time USFA went to all USA parts, Uberti woke up and upped their game. Beretta had a lot to do with that. In infusion of cash, engineers and CNC machine tools made a HUGE difference. Even when USFA were USPFA and well invested in Uberti parts, they still produced a gun superior to Uberti. Way overpriced but none the less superior. I have always described USFA as very well made gussied up Uberti's. Along those lines, Uberti has alway built good looking Percussion Guns. Good looking, but KRAP if you really wanted to shoot them. Uberti Cap Guns are still KRAP. Today, most of Uberti's cartridge guns are really well made examples of SAs. Except for their Open Top line up. Uberti Open Top guns are still Krap. They require huge work to run well.
Colt has been hit or miss in quality with the late 2d Generation and 3rd Generation of guns. For the most part, terrible. The actions have felt like they were full of sand. Colt has needed as much work as Uberti to play well in CAS. For the money asked, one shouldn't have to remanufacture the thing to get it to run. This also applies to USFA. For that kind of money, it should run right out of the box.
Closest Reproductions of Colt are/were Armi San Marco and Pietta. Many parts interchange. ASM let their quality go inna toilette and are gone. Not missed. Pietta rethought and retooled for production of the Great Western II and never looked back. You can actually run a Pietta right out of the box. You can, of course, run it much better if you change the Main Spring. Pietta Percussion Guns are wonderfully easy to set up for CAS gaming.
I've only had hands on two Standard guns. Very very nice on the outside. Very nice on the inside. Both guns I had hands on were being returned for cosmetic flaws. At Standards price point, their shouldn't be any cosmetic flaws. And as with everybody else, the guns were WAY over sprung. For the life of me, I cannot figure out Why the manufacturers haven't accepted we use modern primers?? Should be really easy to figure out. Of course, all the manufacturers guns are Over Sprung. WHY???
Then we come back to the OPs thoughts to combine the subject matter into perhaps a single heading. Nah. Way too many differences. In most instances, a newby can ask assistance here on our forums and within a dozen replies, get enough comparison to gag a maggot. Of course, I like it the way it is. Why fix what ain't broke. Just my personal Opine.
Besides, in most cases, there is simply too much information to encapsulate it under a single heading or even in a single reply. Even in this long winded expose, I left a lot of stuff unsaid. TMI