iPad vs Nexus - Best Tablet Computers?

Nexus 10 vs Nexus 7 & 4: http://www.youtube.com/watch?v=FdKmzZ17haU iPad 4 vs iPad 3: http://www.youtube.com/watch?v=rFP9-c6Ivso iPad 4 Stutter!!! http://forums.macrumors.com/showthread.php?t=1488913