Over the past few years I've had to change my opinion on villain selection in movies. I was mad that The Joker wasn't in Batman Begins and I was super hyped to hear about Venom in Spider-Man . What I saw was that batman begins set up the joker plot for the dark knight spot on, and I saw Spiderman 3 messed up Venom from almost every angle, and oh yea, In the second Fanstastic 4, I really like the Silver Surfer, but Galactus, the most powerful villain in the Marvel Universe, was a damn cloud. After seeing all this, it got me thinking, is it really ok to rush the more powerful villains early in movie saga? Also, Is it possible to bring them in too late? All Im saying is villains such as Carnage, Doomsday, Apocolypse, have yet to appear, and if the character process gets rushed we can have another venom situation. I say look at it like this; Iron Man was a great movie and the Mandarin was no where near it, and as of now he shouldn't be in Iron Man 2, but hopefully they set him up for the third installment. In the cases of Fantastic 4 and in X-Men, Dr. Doom and Magneto are a huge part of each of those franchises origins(or as I like to call it, the yin-yang effect, the villain in these cases are literally the yang to the heros yin). Characters like Spider-Man and Batman have the luxury of having multiple villains, TDK brang out the full potential of the Joker, and the franchise has multiple directions for the 3rd, Spider-Man did great with the Green Goblin and Doc Ock, But really, really dropped the ball with harry as the Green Goblin, Sandman, and of course Venom, however, there are plenty of villains(and black cat) to rebound the franchise with, but as I've already written about, they should save Carnage(the big gun in spidey's world) for a later movie.
My overall point is that for all those that just want see heroes go up against every mega villain in each comic movie is misguided. If you read comics you know that alot of these unique and epic plots are triggerd by a series of events, witch in most cases are hard to write in a movie script, but if the story is drawn out right and all the major players are there, it can set up the epic plot that make these mega villains so special,look, do you want them to force a way for superman to fight Darkseid, or have him have to face bizarro or toyman and then set up the next movie for the epic character that is Darkseid??think about it...
Speaking of Darkseid, doesn't heand Thanos look exactly alike???