Horses for courses really. I used to be a complete charcoal snob and scoffed at the gay gas users. Now, having the benefit of both I can appreciate the pluses and minuses. For example trying to cook a Beer Butt Chicken on a charcoal grill is a real faf and often the lack of heat control means the outside of the bird is burned or the beer boils over and puts the charcoal out! That said you can't beat a charcoal grill for burgers and bangers that need that carbon taste! Use both I say, just for different stuff!
Smudge