Er, Mike? You've carried them *all*? The "pocketable multi-tools"? The Buck MiniTool, the SOG CrossGrip and CrossCut, the Kutmaster Minimaster, all of the various (small) Victorinoxes, etc.? Whew!
I have carried/used (not just tried) only a few, including the Micra, Buck MiniTool, Cross Grip, Minimaster, and some Victorinoxes. The Comparison Page of Mini-Tools (http://www.knifecenter.com/knifecenter/index/minicomp.html) might be a good starting point, though it doesn not as yet include, e.g., the Buck MiniTool and the SOG CrossGrip. Otherwise, not much to add to those remarks. There are some distinct strengths and weaknesses in each, of course, and your choice depends heavily on the tasks you'll need the mini-tool to (and what else you carry).
Some brief personal remarks: Though I almost always have a better blade with me, there are remarkable (and perhaps not so obvious) differences between the *knives* in mini-tools. The Micra's blade, for example, has a bevel only on one side. That may matter in some (rare) uses. The Buck's blade is quite narrow, but at least it takes a keen edge (like the Victorinoxes), unlike the SOG CrossGrip and the Kutmaster Minimaster; not much you can do with (the knives of) the latter two. And almost all knives are on the *wrong* side (up vs. down, like in the Wave). For *pocket/keychain/-ring carry*, many of the tools have unexpected shortcomings. The CrossGrip, due to its "patented gear driven compound leverage" (which does allow a surprisingly strong plier grip), may snag in your pocket. The Kutmaster Minimaster doesn't, but it's lid, like the handles of the SOG and the Buck, do not remain tightly closed and could well open inadvertently. The Micra isn't much better in this respect, though it tends to snap back shut. Of course you could use the pouches (Buck and SOG), but then some quick deployability (and soon the pouches) would be lost. I won't even try to speak about the *other tools* in the mini-tools, except that alarmingly many screwdrivers are already rounded (not the Micra's) and only the Victorinoxes have a personal toothpick. Otherwise, it all depends... For example the tweezers vary in width, the scissors in size, the pliers in shape, etc., but so what? You'd have to know the specific tasks.
To make it short: I have yet to find *the best* mini-tool for me (nothing much I can *do*, e.g., with the SeberTech or the SwissTech). I need both pliers and scissors. For that I could well go one step further in size and settle for belt-pouch carry. Perhaps something like the Leatherman Mini-Tool (which doesn't have scissors, though, and the assortment of tools is *very* limited)? A Wave reduced to 2/3 in size would be fine! I really could use my pockets for other things than a "mini-tool". Fortunately, there are many "loose" keys and other "hosts" around that I don't need to have always with me. The SOG CrossCut could go to car keys (pliers), the Micra to the first aid pouch (scissors), the Minimaster to the sauna keys (great bottle opener)[see, however, contrary experiences below!], the Buck to... And hey, my daughter is nearly three and it really is almost Christmas!
[This message has been edited by Markku Huttunen (edited 03 December 1998).]