Regardless if you like them or not there is no way on earth there were 30 albums released in 2010 better than Deftones - Diamond Eyes. There may be heavier or more brutal albums but that album is a masterpiece in my eyes. And the new Fear Factory has some incredible songs on it and certainly belongs on the list.
To me not having Overkill, Howl, Shining and Ishahn are real head scratchers. Maiden won't sniff my Top 40 so I can't comment on that. Dillinger should be much higher but on a positive note I have 15+ more cd's to check out...