The "official" word on Sakic is the white is the "chase" figure. More and more though it's starting to look like an even split, Walmart getting all blue, non Walmart getting white. So I have too many white figs.
TRU up here hasn't received their cases. If they get only white, I'd suggest an even split. Your pick, as it stands shows you got two variants in your case. Roy and Sakic.
The Walmarts up here are littered with blue Sakics so I don't think either is really rare. I do have two blue Sakics as well.