[2 cents]
I really don't have a problem with the newly-added readouts on Vader's viewscreen. I like the vertically-scrolling text on the right the best, but the little oscillating circle up top and the oval-shaped readout on the left look equally fine to my eye.
As for the new Rebel control room screens... very cool :) They strike the perfect balance between updating the tech while still making it look like retro Star Wars.
[/2 cents]