Fantastic Four vs. Elementals (90's Comico)
I just thought I would throw this out there, and see who really knows their comics.
Elementals:
http://en.wikipedia.org/wiki/Elementals_%28comics%29
Elementals were a serious ass kicking team from Comico comics in the 90's. They were 4 people resurected and possessed by the Elemental Gods in an effort to defeat a guy named Lord Saker who was easily on a level with Thanos.
If you know these guys, let me know how they would do against the Fantastic Four.