The definitions I use are...
If you are sexually attracted to prepubescent children, you're a pedophile. End of discussion. You need to get help not to act on it, and if you do act on it you need to be locked away.
If you're attracted to postpubescent minors, like older teens, that's pretty much just normal. If you're an adult though, acting on that attraction is immoral and often rightly illegal. But it's not itself a paraphillia. It's evolved human nature giving us instincts that have no place in developed society.
If you are exclusively attracted to postpubescent minors and you're an adult you're an ephebophile, it's not normal human nature, it's a deviation, but other than that it's the same as above, if you're an adult, don't act on it. It's an abuse of power, you have more power and experience because of your greater age and sleeping with teenagers is generally going to be taking advantage of them, and that's wrong and again usually illegal.
The only difference between categories 2 and 3 is that exclusive attraction to post pubescent minors is unusual, so it's a paraphillia. Where as non exclusive attraction is normal (in men anyway).
But it's normal in the same way as sometimes having violent thoughts is also normal. Doesn't mean it's at all OK to act on them.
Category one, sexual attraction to pre pubescent children, exclusive or not, is a vastly worst paraphillia than ephebophilia.
With teenagers they generally at least have some sexual maturity, younger people have none. They are rightly hated as the scumiest of the scum that they are.
Sucks if you're born that way, of some how wind up like that, and if you make an effort never to act on those desires I might even feel a little sorry for you. But any sympathy disappears if they act on it.
If you act on it, you can't be in society with the rest of us anymore. No second chances