When I can I will always fly Porter. The convenience and the lounge are winners for me.
First class service on an economy budget works for me! The lounge has lots of comfy seating - there is seating in the waiting/lounge area and also in the little cafe area. The cafe area serves drinks (water, pop, coffees/teas) for FREE. Not the crappy stuff - the name brand stuff - Coke, Sprite, Starbucks Tazo teas. You also get snacks - for FREE! Cookies and mixed nuts/pretzels. And you can take as much as you want.
Plus you get real cups/cutlery. Not the plastic crap. It's refreshing to be able to be treated in a grownup way here.