Okay, these are a bit cleaner. From The Art of Comic Book Inking Vol. 2 by Gary Martin. Each inker gets a page opposite their art to discuss their methods, materials, or just how much they like the penciler. The art scans are higher-res.
Here's a complete list of the artists participating:
Gary Martin, Steve Leialoha, Mike Royer, Brent Anderson (inks)
Gary Martin, Alex Garner, Michael Bair, Rachel Dodson
Gary Martin, Karl Kesel, Hilary Barta, Randy Green
Gary Martin, Al Gordon, Randy Emberlin, Adam Warren
The pencils are all different pages of Ghost, and the author Gary Martin takes a crack at each of them. You can also see how the original penciler inks their own work.
Most of the comic art books I've come across are aimed at the beginner or intermediate level, such as the Drawing Words and Writing Pictures book I'll also be posting from, so it's unusual to find a guide focused almost entirely on nuance -- perhaps this is because the author is a professional inker himself. I don't know how useful this would be for everyone, but I enjoy flipping back and forth to see the different choices everyone makes, though they are obviously all strongly informed by the pencils which are very tight in these examples.