LOL a buddy said something a long time ago that still holds true:I'm 22 and I prefer older, as do a lot of the girls I 'work' with: girls tend to prefer respectful, fun, and friendly regardless of age.
Its not about bringing extended stamina, fantastic looks and a 10" dong to the session. Its about having fun and relaxing in a sexual setting, getting to know someone new, and exploring new sex with new partners. IMH(Experience, with several very notable exceptions) older gentlemen are less nervous, more likely to joke around, and have a broader variety of topics in which they are well-versed.
The difference between older guys and young'uns is that us older guys KNOW we're going to get some more sooner or later so we take our time. Young'uns act as if this is the last time they'll ever get near a naked woman and go all jack rabbit on her....