Personally I would go with the SOG because of the locking system it uses. Kershaw makes good knives but most are liner locks and the Leek is included in that category. I've had a lot of trouble with liner locks over the years with them either sticking open, jamming, or closing while in use. I still don't understand why the knife industry has predominately gone over to liner locks as the preferred method of locking a blade. In my opinion they should be avoided at all cost. The Arc-Lock and Piston Lock system are both superior to liner lock in the method of how they secure the blade. Additionally the Dominator may look good but you are paying over 200 bucks for titanium and S30V but you are stuck with using a frame lock to secure the blade. IMO Frame locks are even more prone to jam and fail than liner locks. I personally have never owned a frame lock but I have used my friends on different occasions and played with them in stores and every time I've used them the locking mechanism fails in some way or another.
Take a look at the entire SOG line and Spyderco line. Both companies use either Lock backs, Arc-Lock or Piston-Lock. Theres a lot more to look at than the cool factor when buying a knife. The locking system should be on the top of the list then steel grade then the cool factor, most of the time you can get all 3. Unfortunately finding a company that uses a reliable locking system is sometimes hard.
