Convenience:
There are a few different ways to measure convenience: Ease of use, cooking options, and fuel type.
With ease of use, we already discussed each grill and declared pellet grills to be the winner. You don't need to constantly move your food or adjust the temperature, which can easily be the case with gas grills.
For cooking options, each type has some real benefits. But we ultimately called that one for pellet grills as well. You have the convenience of a grill, smoker, oven, and more, all in one machine. You also get digital temperature control and other network features that make the entire process that much easier.
For fuel type, pellets are definitely less convenient. They are much less common than propane or natural gas, and you may find yourself in trouble if you run out. You can find LP at most large retail and hardware stores, and if you use natural gas it's permanently connected to your home. Doesn't get more convenient than that.
