These are always a sweet treat for friends or for yourself. Easily accessible on the ttc and they frequently set up booths around the city for various events. I've tried all the flavours and my favorite to scarf down is the Chocolate Crunch. The Chocolate Dutch is just as good as it is rich, so split that one with a friend. The mint one is fairly strong. I really liked the orange infused one as well but I know it wouldn't tickle everyone's fancy.
Pro tip: They now participate with Vicinity (yay!). Also if you get a dozen or more, they take care of the taxes.