Well, that depends, really. When it comes do studying and other intellectual work, I'm more of morning person. Then again, I'm totally fine doing intellectual work in the afternoon as well but I suppose I prefer the morning just a little more. xD
On the other hand, if it's physical, such as sports or the like, I'm definitely more of an afternoon person. I'm ridiculously lazy in the morning and I really don't want to sweat in the morning! Dx
What about you? You never gave out your own thoughts. xD