I will have to go with the Explorer. I have had mine for over 10 years, and it is still going strong. It is the one knife that I carry no matter what. I have used every tool on it, even the magnifing glass. I recently purchased an Explorer plus when I thought mine was lost. I have many other models, but always tend to gravitate to the Explorer. My next choice is the Climber. I like having scissors on them, I use them alot to cut the straws on drinks for my little boy. I have all but given up on on the tacticle knives, I cannot give them up completely though. I am wanting to get a Jumpmaster or a Fireman, but cannot decide which one to get. Oh well, just wanted to chime in.