Yeah I'm down with the chocolate mint ones. The mini's are good too. They're 'fresher.' The crispy ones weren't bad but I'm not sure they make them anymore.
Then there's these:
I've tried mocha, triple chocolate and mint chocolate. Was really bummed. I thought they'd be great.
So my fave is probably plain. I'm not racist when it comes to my M&M's though. They're all brown inside.