I have a Swisstool and love it. I would make sure whatever tool you get has the tools you want and will use, many say they have lots of tools but they are mostly just different size flathead screwdrivers, not really much use but an easy and cheap way to pad out the numbers. I also prefer that each tool come out individually and snap into place, one reason I favor Swiss over Leatherman, on many of theirs the tools are held in just by friction, you pull out one and as someone said "all the others come out to say hello".
People seem to like Leatherman, Swisstool, and to a lesser extent Gerbers, haven't heard anyone mention SOG before, for whatever that's worth.