The Spicy Chicken Yakisobas are my favorite, though the Cheddar Cheese ones are really good in my opinion, too. They taste oddly similar to Kraft Macaroni and Cheese, but instead with long noodles. The Four Cheese flavor isn't as good as the Cheddar flavor, though, IMO.
As far as ramen, I wasn't ever able to get into the Oriental flavor, It just wasn't my forte. My sister seems to prefer the Beef flavor, but she doesn't eat the entirety of the bowl and it leaves me scratching my head. I prefer Creamy Chicken (should I be capitalizing all the flavor names? I feel an itch in the back of my head saying I shouldn't.), but I find the standard Chicken flavor quite enjoyable too.