I get a decent pump from the 5x5, especially with the lil assistance (light dips and pullups + Madcow's recommendations) Mind you they are not extreme, gorged pumps but they are definitely noticeable from off days. Furthermore, I think one could argue that the sustained pumps gained from EOD full body training might last longer than say a 1x per week body part split. Five days after training your bi's intensely, they could be less pumped than having hit them moderately the day before using a full body technique. All depends on your regimen though.
my $.02