Which host offers the fastest speed for Wordpress MS?

I'd like to know which host service is best for wordpress multisite? I know wordpress tends to be a little slow because its built on a database architacture but based on your vast experience working with wordpress, I'd like to get the FASTEST but also RELIABLE host service in he market today. Is it Bluehost? Amazon?... I currently have godaddy but I am aware it has a really bad reputation for wordpress.

Please advise.

Carlos Garcia