Supra Vijai
Black Belt
There's a thread in the Aikido forums discussing what a fight would look like between 2 Aikidoka and also Aikidoka vs other styles, it was agreed that a real fight between 2 Aikidoka would go something like this: 2 Aikidoka enter the ring, bow, then leave.
Apples to Oranges was a great analogy used before. That said, seeing 2 opponents from different styles spar can be fun and very educational. I know I learn a few things when sparring with someone at KM who has a different background and likewise they learn from me but in the end neither is better and the number of 'wins' is fairly equal (assuming same level or experience with MA). Size doesn't factor into it as much neither does strength or weight because that's what the old techs were all about, utilizing what you have to defeat an opponent of all shapes and sizes.
Also the biggest issue with crossing styles is going to be the different rules. A Judo player will have their set of rules in their mind whereas an MMA guy would have his own. To have a truly fair contest you would need to design a whole new set of rules that doesn't favour one or the other and still manage to keep the match meaningful. In terms of different wrestling styles an example that was given to me a while ago by my instructor was: In Olympic wrestling you win if the opponents back touches the ground so when taken down you will try stay on your side or front as much as possible. In MMA you want to be on your back and have them in your guard so you can block/parry/attack/submit etc. If you get them both into a match, the MMA guy will say he wins in that situation because the opponent is on their front allowing a choke or submission but the Greco Roman wrestling guy will say he's managed to stay on his front so he hasn't lost. See the issue?
Apples to Oranges was a great analogy used before. That said, seeing 2 opponents from different styles spar can be fun and very educational. I know I learn a few things when sparring with someone at KM who has a different background and likewise they learn from me but in the end neither is better and the number of 'wins' is fairly equal (assuming same level or experience with MA). Size doesn't factor into it as much neither does strength or weight because that's what the old techs were all about, utilizing what you have to defeat an opponent of all shapes and sizes.
Also the biggest issue with crossing styles is going to be the different rules. A Judo player will have their set of rules in their mind whereas an MMA guy would have his own. To have a truly fair contest you would need to design a whole new set of rules that doesn't favour one or the other and still manage to keep the match meaningful. In terms of different wrestling styles an example that was given to me a while ago by my instructor was: In Olympic wrestling you win if the opponents back touches the ground so when taken down you will try stay on your side or front as much as possible. In MMA you want to be on your back and have them in your guard so you can block/parry/attack/submit etc. If you get them both into a match, the MMA guy will say he wins in that situation because the opponent is on their front allowing a choke or submission but the Greco Roman wrestling guy will say he's managed to stay on his front so he hasn't lost. See the issue?