I like giving my advice/opinion, but threads like "what firearm should I buy?" or "want a fast car - what to buy?" it's not going to do it for me.
Too many variables in this. Determine budget, use, your expectations, must have features, your level of expertise, etc. first, then go from there.
Most people just like what they have and if you are happy with a $400 1911 it's hard to convince you that you should pay $3,000 for a better one.
Put your hands on as many 1911 in your price range as you can. If you ask online about a specific model you get way more (specific) answers to your question(s). Which ultimately can help you make a better decision.
But in the end it's your decision. Listen to your money and gut.