I never, ever wanted a male furbaby simply because I didn't want him marking my entire house so my first 2 furbabies were girls. Katie, my first yorkie, was extremely hard to housebreak because we lived in an apartment at that time, not so easy to just open the door and let her out. With Gabby, she was MUCH easier to housebreak as we have a fenced in back yard and could open the door and let her out (one of us always went with her though). But when I had a chance to rescue Gage out of the house he was in, it didn't matter that he was a male, just that he needed love - and LOTS of it. Thanks to some advice I found reading threads here, I invested in some belly bands and then had him altered. He doesn't mark in my house but will mark outside. He was so easy to train on pee pads!! He is now trained to either go outside or use his pads in case of emergency. The only time he will mark is if we are somewhere other than our home (my mom's house, our deer camp) so we keep belly bands for those times we are elsewhere and not at home. I have also found (and opinions vary on this) that Gage is definitely more loveable and a "lap dog" compared to the females I've had. Katie was more loving than Gabby but had her moments where she needed her "space". Gage just wants to be held and loved all the time.
I don't think you can go wrong in getting a male - to me, it doesn't matter, male or female, they will steal your heart no matter what