All About Pocket Knives

I'm fairly new at collecting knives and would like your opinions on Hen & Rooster, Kissing Crane & German Bull knives? I've seen some for bid on e-bay that look to be of fine quailty as far as fit and finish goes....or at least from what you can tell in the photos.....such as this one.

I have three Kissing Cranes - a split back whittler, a copperhead and a stockman. I like them. I also have Schatt & Morgan, Canal Street and Case.

New to collecting myself and still trying to decide what to collect - a specific pattern, tang stamp, etc.

Right now I into Wharncliff whittler pattern knives.