Ok, that was a little random, but it's been that kind of day.
Back to the point. Fantastic Four 2 totally rocked my pants off. I would watch it immediately again, except I expect that it has literally no replay value. As in, it rocked ass, sure, but once was plenty. The heroes were played exactly as I'd always imagined them being in real (fake) life. The movie and the actors are very true to the comics which, as we all know, is all that really matters here. I can swallow shitty acting, convenient coincidences, and even accept (without even mention or comment, mind you) the extreme disregard for modern physics and science in general, as long as the heroes are adequately super, look cool, have corny banter and triumph in the end.

That brings us to the question of Galactus. Now, a lot of people (read: no one except me) was upset about the portrayal of Galactus the World Eater in the movie, particularly the absence of that crazy yet regal looking pink and purple helmet/jumper combo that he usually appears in, and, oh yeah, a body. In the movie, Galactus is only seen as a giant sort of swirling vortex of clouds which, for me, doesn't exactly strike the same kind of chord as a totally flaming but at the same time badass cosmic destroyer whose pinky finger is the size of africa. And, oh yeah, he's going to literally eat the world. Now that's fucking cool. The whole swirling vortex thing kind of just made me think that Galactus was probably going to fuck up my sinuses. And, as uncomfortable and annoying as that can be... not so much terrifying as I'd like. But that's me.
Ok, so aside from that, this movie totally dominated. The surfer was, aside from being a surfer, completely badass, and smacked down the Human Torch, who I always thought was a toolbox, and who is portrayed as a complete toolbox by a guy who is either an excellent actor or a real toolbox. The Special effects are... actually now that I think about it they weren't really that great, but I love the movie so much it didn't matter. I mean, they were adequate. There weren't any real "wow" moments special effects wise, but the movie moves so fast and has so much action in it that you don't even notice the subpar CGI.
And that's the thing that sets this movie apart from some other super hero movies I've seen, is that it's gets right to the good stuff and then it just keep giving it to you. It's not like the Hulk, where you have to watch him jumping through the desert for twenty minutes (yeah, yeah, I get it, he can jump really far...), or Ghost Rider, where the acting and script were so achingly bad that cool super hero stuff alone wasn't enough to save it. This movie gives you the goods in a palatable package and doesn't try to be more than it is. And I totally dig that.
Summary: Fantastic Four 2 is twice as fantastic as the first, and 1/3 the carbs. You can't go wrong.