I would think that if there were a scale of photorealism vs. cartooning, I would put Quitely about where I'd put somebody like this. SFW, just in case. One of my favorite webcomics.
The difference is that I find Meconis' style to be fully expressive of the emotions in the script. Quitely, not so much. On second glance, though, I do think his composition is pretty good. I might like him better on an entirely different type of story. Or if he were composing and breaking down while somebody else finished the actual illustrations.