The only real difference is the silence in which the men go through their choices as opposed to the more vocal way women come to the same decisions.
Men and women are equally likely to be wrong, the process to make the decisions is the same just more noisy with women...
(that's the J/k smilie for the humorless liberals). Men see it as "making decisions" when the woman talks about it, then sees them as fickle when they say "no, it might be better if"...
If you remember that they are "thinking out loud" rather than making bunches of decisions, it may change how you view it.
Another difference that effects how men and women see each other is what I call the "tape recorder" phenomena.
When I approach a man with a problem, I expect him to offer up some solutions. When women do, they often just want a "tape recorder" that makes some non-committal noises of commiseration...