A good rule of thumb is unless you're getting Crosby, Malkin and Letang, getting more than 2 player on your team from the same club is a bad idea. I have seen some people get 3-4 players from the same team, they do great in the week, but, only play two games, and get beaten by quantity in their weekly match up.
PS I have one Wing on my team, Ericsson, as a bench D-man because I think he will be a good plug for when Keith/Suter/Hedman/Martin/Bogosian aren't playing
A few seasons ago, I had both Sedins. Needless to say, I won the league.