[quote=@DrewVonAwesome]
Thing had a solo run in 08.  Plus all four have been Avengers at some point.

[/quote]

You mean the mini series written by Geoff Johns before he was big time at DC? Can't remember if it was earlier than '08 or not [I thought it was, but comicvine.com is down ATM] but it wasn't that great, and until the most recent Uncanny Avengers Johnny Storm was never a member of the Avengers. It was always Jim Hammond. And at this point, really, who HASN'T been an Avenger? The F4 characters may have been considered members, but I can't say there's even one story out there where they played any kind of prominent role on the Avengers. They may have been stand ins, but no F4 member other than Johnny has actually been a member and not wearing a 4 in his suit. At least Wolverine and Storm had the decency to take off the X buckles and badges... hell Rogue is still wearing her last X-Men costume and she's been an Uncanny Avenger now for a couple years...

~KL~