Or we could propose a matchup of Ex-Tank against Loach.
Borborygmi vs. Randy Seltzer.
A two-on-one match:
Triskadecamus vs. catsix plus Seven.
As Red correctly points out, I am not a damn fish. And since I am also an ex-tanker as well as being an ex-loacher I have the advantage over Ex-Tank.
Well I knew you were named for the copter, but a loach is a fish and you were looking for a match.
Fair enough.
But I’m still not a damn fish grumble grumble
What fire ? vs. What Exit?
See, I thought the Loach vs. Ex-Tank thing did refer to you being a fish! You know, if a fish is no longer in his tank…well, not good, right?
I fooled all of you. I’m actually Ken Loach, film director.
Argent Towers, I challenge you!
You’ll win by default - I think he’s stopped posting (haven’t seen him on here for about six months).
Hi, Neighbor vs. HelloNinja
I don’t really think I have a shot at winning this one.
Or Hi, Neighbour! vs Hey Homie, maybe?
Since Homer was banned, Troy McClure v. Santos L. Halper
AHEM
Right here, buddy. You’re going down!
Ask away. But have I? I didn’t think our paths had crossed more than twice within the last few weeks, and surely the minimum qualification for “enemy action” is three times. 
I think we’ve had a couple of those already.
There’s a poster named Khan?
I can take him ;).
I’d like to see HongKongFooey vs. El_Kabong.
Shirley UJest vs. Don’t call me Shirley
Also, I kind of want a dead language battle royale - IlluminatiPrimus, Cicero, Autolycus, Vox Imperatoris, Diogenes the Cynic, etc.
I’ll referee!
Alpha Male, are you out there?