So, here's my Ben design for an alternate universe (with a very self indulgent concept) that I've been wanting to do for a while now.
Ben 12, as the number suggests, got his Omnitrix at 12 instead of 10, so by the time of Omniverse, he's 18. Even in his younger years, he has some really well developed emotional intelligence and later on dedicates his time outside hero stuff to studying psychology.
Contrary to the Ben Prime, instead of physical confrontations, this Ben relies much more on actions aimed at positive psychological and emotional impact.
In other words, Ben 12 does his best to avoid fights with the villains. He prefers to block their physical attacks and protect the people around, meanwhile trying to build an emotional connection with the opponent, see what makes them tick and try his best to help them (if it's possible).
P. S. His universe's primary color is pastel teal.