I owned a set of KO's for 4 years and liked the way they looked. They were a little loud, but nothing a little loud music couldn't get rid of. My Maxxis Bighorn's are alot louder mind you! I've heard great things about Michelin tires. I've heard that their on road manners are great, and that they are a nice riding tire.
If you want rugged good looks, go with the BFG's, if you want a nice riding tire, go with the Michelins.
As a side note, I love the looks and performance that I get with my Bighorns. They are a mud tire though, and a loud as all heck, but I actually like the sound. The other bonus.....they were cheaper than any BFG, Michelin, Mickey Thompson out there.......