Spider-Man was a member of the Fantastic Four back in 1963 before he quit when he realized he wouldn't be paid (which is how he and Johnny Storm have remained such good friends.)
Aside from that, he (along with Hulk, Wolverine, and Ghost Rider) became the New Fantastic Four briefly in the early '90s.
Besides, you omitted my favorite...Franklin Richards!
Spidey was in Fantastic 4 along with Wolverine Hulk and Ghost Rider
any way I would've went with the three of the four names I mentioned but since they aren't included in this list never mind.......my vote was for black panther
The most popular Marvel characters at the time. Hmm...I wonder why they did that?
I know, right? ;P