Males over females for being docile and affectionate but every cat is a cat. Ya pays yer money and ya takes yer chances. After that, it's up to you. If you can communicate with the cat, yer good and so is the cat. I never had any problems with female cats... that I couldn't work thru. Ya just gotta do the right things and train em right. Same with males. If ya know how, it don't matter. If ya don't, get a tom... but read up on it... lots of info on the net.
I still miss Maggie after all these years. Sad story. I hope she lived a good life with the ex after I refused to take her back after the ex took her away from me during the divorce. I was pissed that Maggie was being used as a pawn. She used to come to me when I called and she slept with me. She was... oh, nevermind.
I guess, in the end, it doesn't matter all THAT much about gender. It matters about the luck of the draw and that means you as well as the cat.