I'm pretty indifferent on gender for most Pokemon. Some Pokemon I do perceive a certain way but I don't make a big fuss about it if I have a hard time finding the Pokemon of that gender (for example.. I'm not going to keep restarting my HG/SS/G/S/C games for the sake of getting a female Chikorita)
Of course there are the obvious ones like Machop/Machoke/Machamp which so obviously look male. It bothers me to no end to see those as females. I mean, they made the Tyrogue evolutionary family all-male... so why didn't they do that with these guys?