It really depends on the subject, like anemometers had said. I love reading about sports, football, soccer, baseball, etc. I think though that I would rather hear about american football from a man than a woman. Most of the time I'd prefer a man blogger over the woman because the men bloggers are typically ex-players, which gives them not only better knowledge of what is going on, but also gives them the ability to put themselves in the players shoes because they've played the same position doing the same thing as those players. For soccer on the other hand I don't mind who is blogging, women and men have been playing soccer for years. Although, if I am reading about Men's soccer I'd prefer a man to be the blogger because men's soccer differs so much from women's soccer with it's whole style of play and tactics.