You have in this order:
Hot Maps Regular : not a lot of selection Alberta lakes basic mapping
Hot Maps Premium : full selection of Alberta lakes and better quality maps plus some other cool features (this is the best choice for fisherman in Western Canada)
Hot Maps Platinum : everything that premium has plus satellitte imagery 3D maps as well (not really required IMO)
Just make sure you get the version for Canada. I have seen some of the states versions here in Canadian stores.
Otherwise check out
www.navionics.com
Hope this helps!