Carter and Getzlaf have a similar style of play. They are both big guys, with great hands, good visions and are not affraid to use their shoulders. IMO, Getzlaf is better at controling the pace of a game than Carter. But over a ten days tournament, Carter would be a first class replacement over Getzlaf.
I am surprise that no one is talking about Vincent Lecavalier. Since he have been snubed by Team Canada, Vinny have been on fire. He have prime time international experience (won MVP at the last World Cup) and he won a Stanley Cup. Maybe health is an issue in his case, since he went into surgery this summer.
Stamkos offensive skills are as good as 95 % of the players that will play in the Olympics. As someone post, tough, he is not versatile enough to deserve a spot on Team Canada. He would probably be part of every other national team. But, at only 19, he will get a chance to shine at 2014, 2018 and maybe 2022 olympics.