Board Thread:New on Ben 10 Wiki/@comment-107.8.178.218-20130523020421/@comment-10388234-20130628141908

It is a Galavan who invented the Omnitrix(s)/Ultimatrix.

Psychobos had just made a fake copied version of it. However Azmuth later found a way to control it.

Also Cerebrocrustatean's like Dr.Psychobos always try to comptete the Galvans.

This enough to conclude the answer that who is smarter.