Age is a number. That is all. If he and I click, we click. Older, younger, it doesn't matter.
What matters to me is how he makes me feel, both mentally and physically. If he can stimulate me both ways, and we have enough in common then it's worth the risk. I want a man who knows what he's doing. I've been far to disappointed in bed to deal with a man who doesn't have any skill.
So, for me, it's skill above age. And skill can be attained at any point in life. But I do agree that often men who are more mature are more...comforting. So in this way one can have the best of both worlds. Hot, crazy, awesome sex, and wonderful, fulfilling comfort. Win-Win.