I was wondering if there is a WP plugin that shows the Avatar used by blogspot users when they leave comment on your blog. So when on WP you look at the comments you would see the little box with the individual picture just like in blogspot blogs.
I don't know if Blogspot avatars specifically can do that, but if you have users that are registered at gravatars.com - those are "globally recognized avatars" and there IS a WP plugin for that. Sorry if that doesn't help...