It is said that Universe 6 has stronger Saiyans. They also have survived long past Universe 7's ultimate destruction of 99% of the race.
In terms of appearance, they look weaker and are much smaller yet are able to contain more power. They are also born without tails.
Appearance wise, the only thing they have in common is dark eyes, dark spiky hair, and the ability to do transformations (excluding the Great Ape).
Which would you say is the better race?