What is your plan in general, what do you want to do?
I'll go with both YouTube and Blogspot...
But if I had to choose I would definitely chose YouTube for reasons known to all of us here...
If you are doing things a little "harder" then go with Blogspot because with them you can do more things than with YouTube.
YouTube is strict and we all know about their rules, of course, Blogspot is certainly greater for adult things for example and things like that...
Wish you good luck with whatever you are planing to do youtub...