I really like both, though it kinda depends on the circumstance xD
I like all kinds of lines, just as long as they're not super sloppy. :3 I think the coloring really counts whether I like the art in general. xD

It really depends on the subject/mood/feel of the picture, I think. Sometimes I simply love to leave my lines sketchy, other times I'm like, "NUUUU! MUST. BE. CLEAN."
Sooo... can't really choose between the two. xD
I love sketchy lines. Making clean lines is ice and all but I've always liked sketchy lines for some reason.
It depends on what I want. If I need it for a clean profile, obviously I'd want clean, crisp lines. If I want something cheap or somewhat grungy, I'd choose sketchy lines all the way.
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