BMO/Aspire World -2% cards require a LOT of spending to get there. Handy if one has a business.
Like others have pointed out J is where it's at. In my case the Caribbean over the holidays 2Y,1J usually nets 2.5-3.0 cpm. Not as good as others, but better than cash out of my pocket. I am not liking being RoUgEd (YYZ-BGI) but that's for another thread.
9.6cpm?!??!?! I am in awe master Oby-one! A true Aeroplan jedi master.