I guess we can assume the final battle in FF1 sucked because they haven't really come into their powers yet. Let's hope Dr Doom becomes the DD of the comics and has legions of armored flunkies and super-powered bodyguards and WMDs. Heroes are only as good as their villains after all.
As most reviews had said, it was much better than the first movie and having Doug Jones and Laurence Fishburne both play the Silver Surfer was awesome.
Galactus was more the Ultimate Galactus rather than the traditional Earth-616 Galactus. Although it was more of an all-destroying cloud rather than a swarm of machines. How the Surfer help prepare for the destruction of the planet and how he eventually does it is quite interesting.
Doom. Jeez. I like Julian McMahon, but he just doesn't exude the air of a maniacally dangerous super-genius / monarch / sorceror that can level a city if he wants to. He weasels his way into situations and gets pwned like a nobody. Though the final battle with him was somewhat spectacular.
The Fantastic Four... better get their act together. Ultimately, they ARE the first family of the Marvel Superheroes. They're no squad of troopers, nor are they the Avengers. And it shows that they are a family.
But the best bit of the movie, the only part that caused a moderate nerdgasm in me is that there are not one Herald of Galactus in the movie.... there are TWO!!!! TWO!!!! (The other one hasn't been converted by Galactus yet in the movie... can you guess who?)