(1) spider-man:
The spider sense is perceived by fanboys as unlimited precognition, almost as the one of a Jedi master, as if spider-man could know exactly when, how, where a hit will come. If this were the case, spider-man's enemies in comics wouldn't stand a chance and that's not the case. We've seen spider-man having a hard time with green goblin and others. Even thought I think the whole spider sense thing makes no sense, since real spiders don't have such precognition, I guess it will work really as an alarm system, telling him that something is approaching, but not necessarily meaning SM would know where and when to move, and he wouldn't have necessarily the time to dodge everything, specially if his attention is focused on something else. Anyway I have always thought the spider sense can be both an advantage and a disadvantage for spider-man, since it can be confused as the punisher did once. I guess spider-man's foes are written as idiots since they have not realized a that this spider sense can be deceived. Note: I like spider-man, don't get me wrong.
(2) Wolverine: Again a great advantage can be turn into a disadvantage. e.g., heavy adamantium bones, I guess wolverine would have more problems than regular humans when they have to swim. or the use of magnetism as Magneto did. Also unbreakable claws that can be use against himself. Any experimented and skillful martial artist could not only dodge wolverine attacks, but make him hurt himself. Yeah, fanboys will claim that wolverine's healing factor makes all soars meaningless, but that is not true, and what comic books have shown is that when the damage is big, even wolverine will faint or even die. Super sharp senses. Again: very loud or high sounds or penetrating bad odours could affect wolverine more than regular human beings, just as in the case of daredevil. He's very cool, but what about the "berserk wolverine". He could be stronger and feel no pain, but that makes him vulnerable to smart opponents, that will use his rage against himself, leading him to a trap. Yes, "berserk wolverine" has no analytical mind.
(3) Magneto: Magnetic fields and magnetism is overrated in magneto's case. The truth is that Iron is present in the blood as a non-magnetic compound. Yes, and magnetic fields only repel other magnetic fields of
opposite charge, not even metal objects. But, that's OK with me, we are talking abouts comic books, just don't make it look as if there are no more powerful energies than magnetism. Electricity, a heavy object moving fast, a very strong being, even gravity, would have more effect on metal objects than magnetic forces many times.
(4)Batman: Very fast mind, and tactician. That sounds fair to me. As described in comic books, he is smart enough to know his own limits. (I'm batman's fan, as a matter of fact). But some of batman's fanboys, only use the phrases "batman would win because he's batman", "batman would find a way", "batman could beat anybody with enough preparation time". It might be true in many cases, but in others like "batman vs Galactus " threads, it is just laughable. In the case batman would have preparation time to face Galactus, the most probably thing he would do first is to recognize that he is not able to defeat Galactus by himself, and then he will get some help, or in some cases he will just back off and/or trick him to gain more time or more help, or as a last resort he would sacrifice himself trying to stop someone. He's not unbeatable at all, but yes he's damn good!