I've owned several Springfields, both new and used, and have had very few problems with any of them. I mean, I am a tweaker and I know how to fit and replace most parts (not talking artwork here, just making it work) and I know how to adjust an extractor. I generally replace the extractor, the slide stop and sometimes the trigger. And I always used magazines of known reliability. Many 1911s come with junk mags... just throw them aside and use some good ones.
Having said that, all else being equal, I would ALWAYS take a Springfield over an RIA. I know guys commenting on how great their RIAs are and how poor Springfields are, but that has not been my experience. I'm in no way blinded to Springfields shortcomings, but in my experience and estimation, they are generally very easily remedied.