All month-long we'll be featuring top five lists about either the Avengers or the X-Men. Here is an archive of all the past top five lists!

In this installment, we'll look at the rarest of the rare, Marvel superheroes who have not yet joined the Avengers (except perhaps in alternate futures. That doesn't count) and that SHOULD join the Avengers. I am specifically not including X-Family characters as "Marvel Superheroes" under this list, since it's not as fun if we count X-Family characters as they'd take up pretty much all of the spots. There is more mystery to it this way.

Enjoy!

HONORABLE MENTIONS

Deadpool



Deadpool is always fun!

Black Cat



I don't know if she'd exactly fit in, but I guess with some of these expanded Avenger rosters, she could work okay.

Adam Warlock



He probably doesn't fit that well. But I'd like to see more of him SOMEwhere.

5. Ghost Rider



He's a popular character who doesn't have his own title. We've also seen him work on a team before (the Champions). So I think he'd fit very well.

4. Beta Ray Bill



Another character that we've seen work on teams before (the Annihilators and the Star Masters) and he could really use the exposure.

3. Songbird



This is just a no-brainer. She's not doing anything right now. She was shown to be an Avenger in the future in Avengers Forever. She's a good character and she's a female character, which the Avengers could always use more of. This should really happen.

2. Silver Surfer



For a time I could see an argument of "he's too powerful," but with the Avengers now having Thor, Hyperion and Captain Universe on the team, I think there could be some room made for Silver Surfer. Hopefully that'll be something Infinity eventually gives us (as Surfer has been getting his Infinity back-up story by Jonathan Hickman).

1. Human Torch



The only reason he's #1 is that, come on, every other member of the Fantastic Four has been a member of the Avengers! How the heck has the Human Torch not been a member yet?

That's the list! Agree? Disagree? Let me know!