he is uninterviewable and even makes dana white nervous
he gets mad at every opponent
he instantly goes after opponents no feeling out
great chin
people love him because he is the bad guy
he randomly screws up PR for the ufc which makes him even more beloved
They are actually not similar at all.
There is only one Mike Tyson. Just like there is only one Nick Diaz.
So...Nick Diaz could be the next Nick Diaz. But that's it.
Uninterviewable? Tyson was leaps and bounds more eloquent than Nick Diaz. Tyson might have said some outrageous shit during his interviews, however, the way he expressed them proved he had a basic grasp on the english language.
If you're gonna compare two fighters, you should compare Nick Diaz to Anderson Silva. They both speak english pretty much the same.
I loled 
hahahahahaha. Tyson is so much bigger now even in retirement than Diaz will ever be
Personality wise he certainly reminds me of Mike Tyson. Or maybe attitude wise. 
His fight style more closer resembles Ali