Paper Mario is kinda MEH. Beat it and probably won't ever play it again. Super Mario 3d land is pretty good, but probably won't be memorable. Haven't played Professor Layton. OOT is nifty, but it basically a port of the n64 game with some new textures. It's not really a true remake as it doesn't really include many changes except the inventory system is easier to keep up with. It does include the master quest when you beat the regular mode. I would recommend this one simply for the longevity and of course Zelda unless you are burned out on beating OOT of course.
Also, all those games you listed can be downloaded off the eShop which is what I do since it's more convenient and you don't have to keep track of cartridges. I'm not sure if you can get the games cheaper in Canada, but Nintendo first party games don't usually drop in price very fast so just something to think about.