Guilty as charged! Haha! Well, if I'm going to play devils advocate, I personally feel that human like eyes are easier to draw, and easier to create expressions with. Small black eyes with white shines just make me think of Pikachu. When I see them on my own characters all I see is Pika...
I do have an animal character pet peeve though. It's when anthro artists draw hair on top of their character's head. Like, a grey wolf with red hair, it almost looks like a wig. I just use fur on their head as hair or something like it. I think it looks more natural and less like a hairpiece on an animal.