1. Wlad - Pretty much everyone has him here
2. Peter - Only lost to Wlad (and debatably Toney first time)
3. Maskaev - Has had a phenomenal come back for his age
4. Toney - On his way out, all the jump in weight has long since caught up with him
5. Valuev - Fights bums etc etc., but just his sheer size makes him tough for everyone.

You can debate my choices all you want, cause I honestly care very little about the Heavies right now.