I know somebody who finds him quite attractive, but I can't say why anyone would. I mean after all he's just a cartoon character. If anything they should be drooling over Simba.
Oooo careful there, double posting is usually ill-advised
Also, I do believe Kovu is aesthetically attractive. His features and form, although a little slim maybe, are built well, and quite a robust jawline too. And as Chizuna pointed out, his voice is definitely ear-candy. ^^
If I was a lion... then yes, he'd be quite the hunk!
But... I'm not a lion. So yeah, his voice is... well, amazing. But yeah... I don't find him physically attractive. Unless I were a lion, then I would probably find him pretty to look at.