I'm fond of the Func "F10.S" mousepads, the big ones which cover a good-sized chunk of desk real-estate (hate falling off or getting snagged on the edges of mousepads).
I prefer a high-precision high-sensitivity lightweight mouse so having it slide around from its own momentum can be an annoying issue, the surface friction on these mousepads is just about the perfect balance (for me) between being a smooth "glide" and not being too "slippery". Also slightly elastic enough to feel comfortable where it contacts flesh (doesn't always feel noticeably hot/cold to touch) and plastic enough that it repels dirt/sweat/oils (generally stays fairly clean, is easy to clean when needed). And it stays exactly where I put it, doesn't move around my glass-surfaced desktops.
I haven't compared a whole lot of mousepads in my time. But I'm pretty impressed with the "performance" of this one. I honestly don't think there's a whole lot of difference in these things, as long as you choose something which basically works well enough for your needs then it's really just about whatever looks, price, and brand you find most appealing. You could probably even paste a big chunk of adhesive vinyl onto your desktop to observe similar "performance" results.
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[/Korth]