The tins and blasters are about equal given the extra cost and extra hits you get in a tin - maybe a slight edge still to the tins. You get 3 YG per Tin, 2 in a Blaster. Also, the Canvas, Jersey and OPC, DWTC cards are more frequent per pack in the tins.
I would say Series 1 and 2 are pretty even this (more so than previous years). Series 1 has Pettersson, Dahlin, Kotkaniemi, Heiskanen, Comtois etc., while Series 1 has Hart, Svechnikov, Tkachuk, Mittelstadt, Bear, Johnsson etc.
Hope this helps.