If you like to keep your options open the Wellgo M-17 pedal is a great option. On one side you'll find a standard SPD style clipless set up and on the other a nice wide platform for the times when you don't feel like throwing on your cycling shoes.
The M-17 is a great pedal for bike commuting, road riding or cross country mountain biking. Sealed bearings are used for maximum durability and a pair of Wellgo 98-A cleats is included. This pedal is also compatible with Shimano SH-51 cleats.