Who is the best Avenger?

[Shiny]

Are you getting him mixed up with Superman?

No. Pick up a comic.

I've read many a comic and I can't think of any where the Hulk has been stated or shown to have a specific vulnerability to magic. Note that not being able to lift Mjolnir and being hit by really powerful magical spells that would deck any super powered individual don't really count as being weak to magic any more than Cap being caught in a nuclear blast would be a weakness to radiation.

Wow. I don't see why being susceptible to magic doesn't count as being weak to magic. Huge *facepalm* Considering magic is the only thing that can really effect him, I'd say yes, that does count.

Read moar comics. Googling doesn't count.