I like the more narrow definition better. I like this definition of "plurality" from Merriam-Webster: "an amount or group (as of votes) that is greater than any other amount or group within a total but that is not more than half". I think that it's helpful to distinguish "plurality" from "majority". If we just intend "plurality" to mean majority (which is done sometimes), then there is no reason to have two separate terms.
my best, James ---- Election-methods mailing list - see http://electorama.com/em for list info
