Pffft, if no Steers is nearby and I cannot find a KFC then it falls to either McDonalds or Burger King depending on which is more convenient. For what you get it really isn't worth comparing the two, both equally hopeless.
Honestly I thought with all the Burger King hype that they were going to be comparable/better than Steers, but as we all know: there is only one KING!
Steers is better quality if you are willing to pay insane prices for take away burgers.
If I then really feel in the mood for a burger I would rather go to Ed's / Burger Bistro / Royal Burger.