Let's shake things up a bit and make things weirder actually...
Syzael vs. The Overkill. Man who starts off making clones, verses the guy who gets stronger killing things.
AA vs. The Yourself. Man Copying a man vs. Man Who Copies a man.
Nnoitra vs. Cang Du. Battle of the Iron Skins.
Roboman vs. Starrk. Spam ahoy! Better Still double up with Quincy Colonel Sanders so they actually stand a chance, plus get two gunslingers in on the fight. :sisi:
Halibel vs. The Heat. Superheated Water vs. Superheated Fire.
And of course, Mask de Masculine vs. Yammi. Truly the beatdown Yammi Deserves. :snigger:
I suppose there's also the potential for that guy who takes control of people vs. Zommari but we still don't know who that was sooo...