When I first saw Stewie on Family Guy, I could not help but to think of Vegeta's Voice. He sounds a lot like Vegeta. The fact that they both had a desire for world conquest made them more alike. Another interesting connection between the two is that we don't get to see Vegeta's mom in DragonBall Z and Stewie is trying to kill his mom in Family Guy. What is your view on it?
This is a waste of the electricity required to transmit it. From the very outset, you were grasping at straws. They both have a British sort of accent, and Vegeta at one point wanted to rule the world.
And then there's you talking about their mothers. There is literally no connection here aside from the idea that Vegeta may have killed his mother (which is something you just made up with no backing or theory whatsoever.)