...with the enormous breasts, ant-sized waists and everything. Not to sound PC but John Romita SR's drawings of Mary Jane and Gwen Stacey in the 60's SHOULD always be the blueprint, not that Jim Lee/Liefeld stuff.

Oversized muscles and guns-this has already been mentioned but I HATED it.

Crossovers in general. This came along in the late 80's to be fair but it was the thing that killed Marvel in sweden (we were always 2-3 years behind) in the early 90's. Since only three magazines were published monthly here (Spiderman, X-men and Marvels Universum/Mega-marvel-an anthology styled magazine), it became impossible to follow what was going on in the stories and I couldn't afford to pick up all the american imports needed to fill in the holes. Maybe I would have thought differently if I was american but really, most of those storylines sucked.