What a coincidence! I'm eating a 6 pack of them right now! I like the cream better. I lick off the cream before I eat the cookie too. When I was younger, I lick the cream off an Oreo, then trashed the cookie. I got yelled at for wasting them, so I started eating the entire cookie.
None of them. I don't like Oreos to begin with. In the first place, I can't eat cream or frosting because it doesn't sit in my stomach, and to be honest I don't really like the taste of the cookie part itself. I don't really get why people love them so much...
I only liked it a year ago and I would always eat the cream then the cookie first. But now I really dislike it since the taste is just too odd for me. My stomach wouldn't accept it.
Oreo McFlurrys are my favorite icecream in the world. Just for the cookie though, I eat both the cream and the cookie. The cream tastes better though IMO.