One kind is the milky, syrupy, lighter kind that you would find in things such as chocolate milk, chocolate shakes, and chocolate ice cream. Basically the stuff that's made from milk and Hershey's chocolate syrup. But I kind of already said that.
The other kind is the rich, solid kind of chocolate that you'd find in chocolate candy, brownies, fudge, etc. That's the friggin awesome stuff. I'll tolerate all the milky wah-wah chocolate, but this is the real shit.
And for a vanilla ice-cream lover such as me, Ben and Jerry's Fossil Fuel totally hits the mark on what an ice cream should have. Let's stick with vanilla because chocolate ice cream is somewhat putrid, but let's throw in everything that is totally AWESOME about chocolate: brownie bits, chocolate FUDGE (not syrup!) swirls, and little chocolate awesome dino bits. This is the best ice cream in existence, period, comma, space, p, e, r, i, o, d, period, dot.
Rating from 1 to 10: Ice cream out of 10.
BTW: YOU KNOW WHAT ALMASY AND JAMES YOU CAN SUCK IT, ICE CREAM WILL RULE TILL THE END OF TIME.