Depends what you mean by older (and that's relative to how old you are of course) . When I was younger I really liked older men. They were more confident more experienced and knew what they wanted. Now that I'm, lets say more mature I really get a kick out of playing with younger guys. They have stamina and can repeat quickly and they give my ego a bit of a boost too. So tastes can change over time. Men in the 30s are a good compromise - still full of youthful energy but hopefully with enough experience to know how to please.