Waffles. Definitely waffles. Waffles offer more of a crunch to the texture which I enjoy. I also find easier to spread butter on them and the taste on a whole is much more enjoyable... though both are still delicious :D Waffles are generally easier to make too!
On a slightly unrelated side note, whole wheat pancakes are awful *shudder* :|
I like them both but I voted for waffles. It's so cool how you can scrape the butter into those little compartments (it slides off pancakes), and the little compartment also helps hold the syrup you put on. Do I get Most Helpful Opinion? :)