it all depends on what you want,
gloves that have less padding over the knuckles (punchers gloves) can seriously injure an opponent, and break your hand at the same time

gloves that focus thier padding over the knuckles (boxers gloves) will protect a fighters hands, however it will be harder to hurt your opponent as your knuckles will likeley not be felt through the gloves(guys like judah and mayweather prefer these)

there are also more generic gloves like everlast that are sort of a mix of the two.