Free virus and anti spy ware?

I am currently using AVG. I am using it as most sites advised it was the best? Agree or not? Is there other spy ware (free) that is better?

I also used CClean anyone heard of it? It seems to do quite well.

Any other suggestions appreciated. I had a guy find my own personal email that was not even on any of my messengers etc., that really freaked me out.