My money is on the Yeti.
The MMA-ist would try to shoot - and get stepped on.
The Judoka would try to break balance - and get stepped on.
The Aikidoka would keep ma ai and try to apply kotegaeshi to the Yeti's foot - and get stepped on.
Then the Yeti gets his own website and gets a host of groupies who think Yeti-jutsu is the best style and start a forum on how they hate MMA, Judo and Aikido and anyone who does it
I see a trend developing here.