I am well-know as an advocate of the original Leatherman PST. Since the original design, others have tinkered with it, they've added other gadgets, they've tried new mechanisms to try and evade Leatherman's patents and they've shamelesly copied the Leatherman product.
Multitools are necessarily a balance between size/weight and the number of tools carried. Thus, the collection of tools you choose to include has to be carefully selected for maximum utility with the minimum number of pieces. IMHO, the Leatherman PST just about hits the bullseye.
I have seen the Swisstool and I must say that it is well-made. But, it's too heavy and bulky for my liking.
I carry my PST just about all day just about every day. The PST has many times earned its keep. But, the size and weight of this tool make it much easier to carry than so many other tools.
The point that I've often made is this: there is no one perfect multitool. What makes a multitool perfect is when you carry it regularly and use it frequently. The real synergy comes when you start to see your world and the problems you face in terms of the multitool you choose to carry. Then, you'll find new, creative ways to solve the problems you encounter using your multitool.
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Chuck
Balisongs -- because it don't mean a thing if it ain't got that swing!
http://www.balisongcollector.com