I'm definitely a night owl. I love sitting up far into the night just doing my own thing (writing, vidding, reading , watching, surfing, you name it), it's peaceful, I feel more awake (I know this may sound weird, but I can be tired throughout the morning and early afternoon, but come evening and night I will be wide awake again) and the night just feels magical to me. I suck at getting to bed at a reasonable time, so I struggle whenever I have an early shift (luckily I will be starting night shifts in about two months, which will eliminate the early shifts, at least for the rest of the year, then we'll have to see what happens).
I hate early mornings (anything before 10-11am is early for me), and anytime before noon is just the most boring part of the day. It's too early to visit people or people are busy, there's nothing good on TV, little online activity, it's just incredibly boring. I'm okay with afternoon because they give me the option of socializing, and I like evenings for the same reason. Nights may not be good for real life socializing, but the net is booming at that time (at least when it's midnight in my timezone) and it just feel like *my* time
Also I never have a problem stretching my bedtime another hour or two, but forcing myself to get up an hour or two earlier is like torture for me.