you'll probably get suggestions for the SOG powerlock, LM supertool, LM Wave, Swiss Tool, and The Gerber Legend series. One of these usually gets a vote from someone. the Wave is smaller than the powerlock, supertool, and swiss tool. If weight is an issue, you'll definitely notice a difference. They're also more heavy duty. If you carry a separate blade, the wave looses it's appeal because some of the tools don't lock. The others I mentioned have locking tools. Powerlock has been getting most of the votes, but it's the biggest too. Check into these and get a chance to play with them if you can.