I've only used Microspikes. They go on and off as easily as a baseball cap, and I've yet to slip a single inch while wearing them. We get a lot of ice around these parts.

My only complaint about them is the color, which (after some fading) is sort of pinkish. There is also a label for the "Front" on each one, but written in the same color, so it's hard to see in some lighting conditions.
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It's easy to be a holy man on top of a mountain.
-- Larry Darrell