I've blogged forever and I've stopped because I don't have much time left to write stuff.
I feel that wordpress is better, because there's so much more customisations, especially if you're using your own server - but trust me - rather use the one they provide on wordpress.com. You can edit so much stuff in there - check out their page php edits, as well as plugins that you can also really customise to the bone. The user experience and control panel also outweighs the ones of blogger's, because it is well organised.
Blogger on the other hand, it's a bit empty-shelled and the user experience for visitors isn't that great - especially when they comment. they're with google so you can use everything under your google account, but hey, I'm not sure if you can start another one under the same account.