If you decock a 1911, there is no mechanical means with which to cock the hammer again. You would have to do so manually, that is why they don't have decockers.
If you don't want to use the thumb safety, that is your choice. The finger connected to your brain ultimately being the only safety device that actually means anything, that is up to you. Personally I find it so natural to flick the safety as I aquire a grip on the gun that I don't even think about it. I just slide my thumb down the side of the slide until it is under the thumb safety, disengaging it in the process of drawing from the holster.
John Browning has more patents to his name than any other person. Firearms would not be what they are today if it weren't for him. If there were an opening for god of firearms his name would be at the top of my list.
With that said..... I carry a SIG P226.
I do agree with you Kenney, there is not one gun to rule them all. (Just had to add my two cents since I saw everyone else was doing it!