I've recently applied to study at 5 universities in England. Now I'm considering 3 of them as prime targets as i've got offers, however i'd like some advice based on the structure of these universities from a RP perspective. University no.1 is 50/50 male to female ratio and seems like the sensible option. University no.2 is 60/40 male to female ratio. University no.3 is 40/60 male to female ratio. The 3rd uni is in the back of my head surprisingly enticing but i've narrowed that down to me wanting to have less competition amid an attempt to increase my n count while studying. Which one would be the smartest option for long term benefit?

Edit: Apologies for the misunderstanding, this is my final consideration. I've already weeded out the less prestigious universities and checked their teaching satisfaction and availability of certain facilities. Just thought i should consider the gender ratios too.