Yea, I agree, there ARE some artists who will only favorite other deviant's work because its their friend.
But I'm not one of those hypocrits. I'll favorite anything that appeals to me. I have artists favorited who do abstract, realism, poetry, NOT JUST ANIME.
I can draw realism, cubism, whatever. I like anime and thats what I'll draw more of.
And if you take a look at my favorites, I favorite random artists for their styles, use of color, coloring techniques, etc. And I'm not an artist who judges what should be favorited and not.
I think that if there IS something that the favoriter sees in the artwork in question, and the favoriter want