I've only used clear lenses up until now. That said, I've just bought a new pair of Oakley's "Military Spec Ops Ballistic blah blah blah" M2 frames, as they seem to fit my big fat face rather nicely, and they've come with interchangeable lenses (the box has clear lenses, and grey ones for brighter conditions). They really are comfy, by the way if anyone's considering them.
Having tried to read around the subject, are there actually any lens colours that make a meaningful difference when shooting at clays (I tend to shoot sporting, so am generally poking at black clays against a greenish background), or does it basically come down to 'everyone's eyes are different', and pink/yellow lenses etc are really just a case of personal preference? I can't tell if there's a definitive answer, but I'm interested in folks' experiences with different lens colours.