Depends on what I'm cooking. Mostly I prefer charcoal, but if I need to get a real good caramelization or a quick hot seer on a piece of nice rare steak, I switch to my gas infrared grill. It gets way hotter faster and since I'm usually only using it for 3 or 4 minutes, it's more convenient than charcoal for the same purpose.
Do you prefer IR over traditional gas? More difficult to clean or about the same?
I'm currently in the market for a new grill, but I don't know anyone personally who has an IR grill.