The two good 1911s I have are a Springfield GI, and a Norinco.
The Norinco may be hard to find.
Sorry, no experience with a RIA. But I do hear good things.
Can I recommend that you have a left-handed safety installed,
if you are a southpaw? Because I had a ambi-safety on my Para,
and I had it removed, because frankly, it sucked. In order to keep the
safety from shearing off, they "improved" the gun, by making the safety
action so light, it defeated the purpose of a safety. It was constantly
switching itself to fire.