Is today " recommend me a new handgun day?" I missed the memo! LOL!
Ok, let's assume you do not want a .22, and you have already had experience with guns, and you are set on a 9mm- .45 range.
Glocks are idiot proof. 17s are easier to find than 19s. Reliable and accurate enough. Have you tried the striker trigger on one? Same problem with the M&P and Walther series. Some like it, some hate it. The 1911, you mentioned Colt and Wilson Combat. These are pretty pricey guns and if you pick .45, also pricey ammo. Can you afford to shoot them regularly? These are questions you have to ask yourself before making the investment.
Both are great guns in their own right, along with all the CZs, Brownings, M&P, Berettas etc. out there. You need to try them, fondle them and finally decide if you can afford to shoot them. Once you go through this checklist, you will know which one is for you. Good luck and have fun!