Yes. I love the fact that he was a coward, I love the fact that he was a bully, and I love the fact that he basically became a traitor to both sides. I
love all those things he did. I don't care how "good" of "bad" a character is. If I chose all my favoriete characters based on how "nice" of "moral" they were... well, they would be very, very boring characters to obsess over, wouldn't they?
I understand why many people dislike him, but I personally don't. It is entirely plausible that a person can like a character that isn't on the protagonist's side.
Also, I've already answered vragen similar to this several times on both this spot and the HP vs. Twi spot.
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