Boy am I glad to see people remember my favorite anime as most seem to only know about the new stuff, not a Classic or a Gem like Yu Yu Hakusho lol. XD
As for these questions here are my answers lol
What did I like about the anime?
The storyline. It wasn't too long (Like how Bleach is 366, Yu Yu Hakusho had a modest 112 episodes) there weren't tons of characters like in new animes, so the ones you see in Yu Yu Hakusho you see their personality and character develop alot more. Also you won't see characters as silly looking as in Naruto or Bleach or newer animes, and the girls aren't all DD breasts with long legs or silly looking lol. The characters kept it real, especially Genkai (throwing Cigs lol) the language, the personality, heck Yusuke even calls his boss a little b***h, how many people WISH they could do that? lol XD
Who was my favorite character?
Yusuke Of Course!
Did you have a crush on any of the characters?
Keiko. Who doesn't like a loyal school girl who doesn't disown you when you tell her "I see dead people" lol.
What was my favorite Fight?
Demon/Mazoku Yusuke Vs. Sensui. I'm normally not even a fan of villains, however Sensui to me is the perfect villain. 7 Personalities, older than you, did your job from the time you were in diapers, knows Spirit World and how your boss works, messed up in the head yet at the same time super logical. Who wants to open up demon world and let a natural order in place. If demons eat humans, oh well, so be it. The hero gone bad guy, and his whole story/complex made him the perfect villain, not to mention his energy could make others burst into flames just for getting near him. Plus Sensui was pretty dark, killing Yusuke, shooting him up, and telling him hes got the face of an Angel, too bad hes gotta break it lol. When Yusuke Transformed and got the better of him after coming back from death, thats my favorite part of the series lol.