Just got out of the 12 showing for this and the movie was really great. Dark Knight is still king of comics, and liked Iron man more well. But first class would be next in line, I would put it ahead of thor which i liked.
Kind of drawing a blank on prequels but I might say this may be the best prequel ever made. Its by far the best x men to date, though wasn't huge on the first trilogy. IMO they were too campy and a little cheesy at times.
This one has a darker feel and more dramatic. It really had a solid script and I thought all around the cast did a really good job. One of the things I loved about it is there are a lot of little details that tie into the x men franchise and the other connections to the original trilogy. For example a Rebecca Romijn cameo. The origins of Magnettos mask. How Charles ends up in a wheel chair. There are a couple of references to Charles and being bald which I thought were great. I also think for the most part Magnettos and Professor X always lacked a cool factor in the films. Both come off as super bad ***** in this film.
But would definatley recommend this movie if you like the x men. I probable would grade it as a A movie. Not that the FX were bad but there really was nothing that really wowed you. Only thing that really prevents me from giving it an A+