Hmmm.
When i was barely 18, not a virgin i met a man (David) who was about 6 years older. He became my my first real lover who taught me so much about my body and also, looking back, D/s relationships. He was a text book Dom, long before i really knew anything about that kink, but took to it like a duck to water. This is what i was looking.
Before that i had only been with men/ boys of my own age. Sex was, well exciting because it was sex and it was forbidden fruit, but that is about it. It was fun but not mind blowing. David taught me about my body, gave me multiple orgasms, fisting, oral, anal, etc. He left no stone unturned. Older than me, he was still young enough to have great stamina
At 17 years old, before David, there was a man in my home town who pursued me, he was 22 years my senior. I of course rebuffed his advances. (This was at a time when the laws changed and they allowed women into mens taverns and local bars. My friends and i started hanging around the local bars so he thought i was at least 21.)
About 2 years after i broke up with David, Vinny started to pursue me once again. I was 22 or 23. He was relentless and i finally caved. He treated me like a queen. But before Vinny and after David i dated a bit. Sex was very vanilla, although i did teach a young man 10 years my junior and that was fun, the same age men were very much into themselves. Mind you, my needs were taken care of, but the sex was more gymnastics, which was great but different. How many times could he get hard in one night. All fun.
But Vinny, a super fit 40+ year old, he was concerned about me and my body. Learning every nook and cranny, every curve, every valley, every fold. He got into my head as well, he would push me to do things or do things to him in partially public places, we stealthily (and nerve wracking) had sex on a public beach under a blanket. He brought an entire nother level to sex. His approach was similar to David's, very Dom-like. They both were patient in exploring my body, but reached into my mind as well.
Younger men have their place and stamina. Being active in my local kink community has broadened my horizons on age. I do not have sex with anyone but my husband, but the younger men are very interested in me when i go to the dungeon. (I'm 66) Most participants are 40 years and up to 80, a few might be in their 30s. The older men, my age and up have a maturity and i like them to play with me. There is one man who i have known for about 4 years, i play with, who is 50 and he does not care about my age nor i care about his. Once you get to know a person their age does not seem to matter as much as long as you have something in common with them. Although, if they are too young (for me) under 40, i feel like their grandmother. Lol. And i am done mentoring.
Edit: Depending on what age you are, each age and experience or expertise of the man is key. I have been with younger men who amazed me. And some younger men who i mentored (or seduced,) Men my own age that were amazing. And older men who will always have a place in my soul. They each came into my life at the right time.