I am an experiencer of women and men administering oral sex. I think there is no definitive answer to this
question. There are too many variables. Such as, is the receiver more oriented toward women or men. In my own case, I am essentially heterosexual. So if you put an attractive female naked and an attractive male naked in front of me; no question I'll grab the woman. Therefore, to start with, I am more aroused by a female. The female style of cock sucking I believe is oriented to the the female physicality. The female does more licking, more sucking the head, less vigorous stroking along with licking and gently sucking the balls. Females do one other thing that men don't do much and it's a biggie. They look up and make eye contact with you while they are making love to your cock. It's all wonderful and makes for a wonderful orgasm.
Now men, probably if you were gay or bisexual and mostly oriented to men this would all be the opposite.
My experience with men is this. There sucking style is very aggressive, they suck harder, and usually try to get more of the cock in their throat. The style is harder, faster, sloppy with spit and continuous until the cock surrenders it load to their mouth.
I have found the "finish" is different between the two genders. Women usually quit sucking when the main load of cum is in their mouth ( they either swallow it or let it run out of their mouth). My experience with men is they tend to not stop after you "nut" ("Nut" means you peak with orgasm and start ejaculating; the sensation then begins to fade. Men keep sucking as you're squirming around (squirming because the cock becomes very sensitive after orgasm) until they milk every drop out of your cock. Or as they say until you're completely drained.
These are my personal experiences and on a larger sampling of men may be contrary to their opinion.