Our coach played for the Jokerit as a junior, and still has a strong connection there, so we were always going with it (permission was granted by them). Our league refused to let us use any blue/red/yellow options, as it's the state colours, and the red/yellow option was out as there's one club already wearing red, and another with yellow... Left us with the white, green or purple options, and the green won the vote.
Our league isn't big enough to warrant alternate jerseys, so this one covers all the bases for us, and it grows on you really quickly.