Mallets or M324s for me.
The only disadvantages of these is if you are a weight freak (I don't care, as I'm at the stage that the weight I need to lose is on me rather than my bike), and are riding technical terrain that such a big pedal might get caught.
They are the best of both worlds. If you absolutely don't care to grab your clipless shoes, you can grab anything that gives traction and still go on your daily ride.