Please help, i want your honest opinion on which of rat is better.?

Alright, well my name is kasey and i am getting rats this summer. i have studied them relentlessly and i know alot about them but i still have not decided whether i want boys or girls. i am looking for a snuggly type,which leads to boys but i get afraid they might become aggresive. also they urinate alot (this really wouldnt bother me but it would if they peed on me all the time) now ive heard females are more active :( i like to cuddle haha and they tend to get tumors more often. well thank you guys, i would really like some help from people who have had both es of rats. thanks:)