TEAMspeak and ventrilo are designed, built etc for clans, teams, whatever, to speak to each other. Skype is an alternative to phoning. Skype is up to 4 for example and if you want to speak to each other while in game, the useless extra features of skype and the tons of extra useful ones in t./v. make the decision obvious
-"The glass is neither half-full nor half-empty: it's twice as big as it needs to be."