I would say the first is the weakest of the set. boost those colors!
IMO, the third on would look way better if you cropped out the bottom so you only have the sky and building. Others may disagree, but i think it will really clean up the pic and make the colors on the windows pop
btw, they're not crap. ik what you mean by not liking your own work, but keep practicing and you'll start to get shots that get you so stoked