I have an Ed Brown and a Custom Shop Springfield.
I love the Ed Brown - a stainless Special Forces 5". I really want to get another Brown - this time a 5" Kobra with a rail, and the Gen 3 finish.
Be aware that you could buy what is in the shop there, or order another for the same price and make any changes you want. You will wait 60-90 days for an ordered one, but they always seem to come in before the expected delivery date they tell ya.
I lusted after Nighthawks for years, and had their first printed catalog. I looked at it a lot. When I finally got to hold some Nighthawks, I just wasn't that impressed. The Browns felt better to me.
I also don't care for WIlson. I don't like the 30 lpi checkering they do (if you special order, you can admittedly change it), and I don't care for some of the thumb safeties I've seen on some Wilson's I've handled...
I also don't personally care for Les Baer. I don't want a gun built so tight - where ya HAVE to use a bushing wrench to get it apart.
I wish Brown would make all his models available in 9mm. So, for now - Brown is my fav 45 cal 1911. The Springfield Custom Shop is my fav 9mm cal 1911.