Sak Classic, because I always have one nearby. Most useful knife I own.
Utility knife of some kind, second most useful knife I own. Probably a Stanley 99E, because I love how comfy and rugged they are, blade storage is a big plus, but I hate the screw holding it together. Too easy to lose.
I get past those two, and I'm in the want category. I like how Opinels in the 7 through 9 category fill my hand. Case makes the Swayback Jack and Gent, to get my wharncliffe fix, although I have the Stanley for that. Maybe use a medium stockman instead. I like Buck's 303 offering. Lastly, a scout pattern of some sort. I just like them.