TPB - 'Reign Of Doomsday'
#900
#900 (2nd Printing)
#900 (Hughes Variant)
#900 (Ross Variant)

#1 - 'The Butler Did It'

Director's Cut
HC - 'Ultimate Comics Wolverine vs. Hulk'
TPB
#1 - 'Part 1'
#1 (3rd Printing Variant)
#1 (All-New Printing) - 'Part 1'
#1 (Sketch Variant) - 'Part 1'
#2
#2 (3rd Printing Variant)
#2 (All-New Printing)
#2 (Sketch Variant)
#3
#3 (Adam Kubert Variant)
#3 (Second Printing Variant)
#4
#4 (Second Printing Variant)
#5 - 'As Told In Five Parts'
#5 (Second Printing) - 'As Told In Five Parts'
#6 - 'Part 6 of 6'

OGN SC - 'The Underwater Welder'