There are men who admit they are totally more comfortable with women, it's just appears to be far more rare than women who say they get on better with blokes. And when I heard it from a man, it made me feel a little uneasy, like it's nothing to be proud of ( he wasn't, was just stating the fact that he felt a bit intimidated by other men and wasn't sure what to talk to them about).
Also my father was/is completely like that, really at ease in female company, and far more uncomfortable in the company of men only, he'd have to have alcohol involved to be even able to take part in the conversation. But my father, though not effeminate, is very quiet and soft spoken and also very un-materialistic and a dreamer. I think he could have made some male friends if he found a kindred spirit, but he didn't. His one close male friend was a school friend, who was eyewateringly stupid but always looked up to my dad like an over enthusiastic puppy, and all they did together was get drunk anyway. With women my father has all sorts of philosophical conversations, about the meaning of life, etc.
Anyway, women who say they prefer the company of men usually only say it to women or in their closest circle, I don't think they declare it to men at large normally, or that it in any way delights men and makes these women more attractive in their eyes, probably the opposite.
I do think that most women who say they find men easier say it not because they hate other women, but because they feel intimidated by them and are not sure how to fit in.
(And the solution usually is to overcome own shyness, show initiative, put on a bright face and not take rejection or lukewarmness personally; a bit like dating)