Very different, I know. The're around the same price on ebay ($130) and I like the looks of them both pretty much equally. I don't know anything about the internals except what country they're made in so looking for opinions.
For me the titanium doesn't add anything because I like the feel of some weight on my wrist. I've read that the Armani's mark up makes it a low quality watch but I've always thought of Skagen as a low end model.