My first male crush was Don Karnage from Talespin.
When it first kicked in, I was still dealing with the whole "I like guys" thing, so he was perhaps an excellent first crush. I mean, is there anything safer as your first crush than a character that doesn't exist...and who isn't even played by an actor you can crush on?

[I suppose I could've crushed on Jim Cummings, the voice actor, but that would've been rather convoluted.]
It wasn't until years later that I tried to figure it out - why HIM? Why the cartoon anthropomorphic fox/wolf villain from this show? I didn't seem to have a thing for anthro creatures in general, OR wolves/foxes in particular. I rarely have a thing for villains, or vainglorious characters, or hodge-podge Spanish/Italian accents. It was just...him. And I think I did the wisest thing - I just accepted it. I enjoyed fantasizing about rolling around in bed with this character.
And as time went on, other cartoon characters piqued my interest. And other than being male, there was never any pattern to them. Some were muscular, some weren't. Some were heroes, some were villains, some were neither. Some were main characters, some were exceptionally minor. Some were human, some were human-like (like elves or whatnot), some were anthropomorphic animals. Some of the anthros were "furry", some were "scaly", some were neither. Some were well-grounded, some were quirky, and some were psychotic.
And if I "learned" anything from it all, it was that I perhaps didn't have a "type". I took it as it came. If I found myself sexually intrigued by a character, I wouldn't analyze it. I'd say, "OK, Space Captain / Happy Sidekick / Goon #3, let's (mentally) take you to bed and see what happens." And I enjoyed it immensely.
Lex