Well, I was somewhat impressed with Mousavi. He's a really slick politician, and I like him okay as far as politicians go (they're all slime, really). The deaths during the protests show he needs polishing, but he also appeared to handle things as well as you could expect considering the circumstances.
I make exception for confrontations with the Basij: when your government uses a gang of thugs to get things done, you should make it impossible for the government to accomplish anything when they are around. I wager that half of the Basij are drug addicts. I despise drug addicts.
Remember, you have to keep your government trained. They don't learn all on their own, you know.