From difference in cooking time, to flavour, to heat source, to preparation time to get your barbecue going, there are major differences between propane and charcoal powered grills.
Propane Barbecue: In essence, propane grills are the ones that are quick to heat up quickly. The source of combustion utilizes propane gas tanks. Propane grills often come with accessories such as side burners, warming racks, lighting fixtures, and storage racks. Propane grills are generally more expensive than charcoal grills, but they are much easier to use in terms of control of heat, and safer to use in relation to the fire source, as you can control the amount of heat easily.
Charcoal Barbecue: Charcoal barbecues utilize charcoals as its source of heat. As such, your barbecue’s fire will require constant monitoring in order to control for heat source. In addition to that, you will also need to set aside time to start the barbecue and heat up the grill and get the fire going so that the coals are heated through enough that they can be used to cook your food. That said, charcoal barbecues imbues your food with a unique type of smokey flavour that you just cannot get through most other cooking methods.
Other factors that make a difference between the two is that propane grills are more sturdy against weather. It might be more difficult to impossible to use a charcoal grill in the rain, whereas a propane grill can allow you to go about doing your barbecue. Cleaning a gas grill is much easier than cleaning a charcoal grill, as the ashes and used coals will leave a big mess. The safety of a propane grill is much higher than a charcoal grill, as the source of fire can be shut off, if the valve that supplies the propane is shut off. Whether you choose a charcoal or propane grill is dependent on your preference.