atschatsch It depends on the fights. I have seen some mma and boxing fights that are hella boring. it just depends on what interest you. I am a martial arts fan as well as boxing that is why i find mma exciting cuz they mix it up. You'll see some striking-kicks and wrestling/submissions:good
I don't think its a good idea. It would be hard to make it entertaining for everyone. MMA fans would be bored with a 12 round fight, boxing fans would be bored with the grappling and jujitsu. I myself am a fan of both, but I don't see how it would work.
I like the mix. It gives me something else to enjoy. Not sure about both being done in a ring though.