I like the leatherman because it is convienent. I generally use the right tool for the job if i'm in the fix it mode. When i happen to see something that needs tightened or cut and it's quick and easy; i break out the leatherman. Big projects i break out the tool box.
Next tool...Carried a Spyderco (police model) for years (TSA stole it out of my luggage), simple one hand operation and a quality blade.
Spyderco Police Stainless Steel