Mine is my last name so my email address is pretty easy to figure out!
If you go with your name, remember that you'll be much easier for future employers and partners to find. Also, if you have some esoteric interest like the erotic habits of turtles and you start posting it on your website.... Well, let's just say all your friends will find out pretty quickly!
My website is devoted to my family history so it makes sense to use my name.
It also makes sense to pick a name that will reflect your interests, not only now but in the future too. If you think that your interests will change over time, it's probably best to pick something more generic that will have long term appeal.
It really depends upon what you want to use your website for.