I remember what it was like to be totally bored with guys my age because they were so horribly immature. So I can understand why you might be into older guys. The problem is that there's a huge difference between dating someone 16, 17, or 18 and someone in their 20's or 30's. That's when it's creepy, and also illegal as others here have mentioned. No guy with honorable intentions is going to be dating a 14 year old girl if he's 20 and up.
Please know that these guys are using you and that's not a good message to send to the universe. You deserve love, companionship and respect, and please hold out for those things. Don't cheapen yourself by letting yourself be used. You deserve so much more, honey!
Nothing wrong with checking out guys in the 15 - 18 range, though. They might think you're too young, but there's always a chance you might find someone cool.
Felicia