wmoses, I say that charcoal is easier, as my portable grill and charcoal are easier to pack than a gas grill. At least the gas grills I have seen.
I don't have as much storage room as larger TTs, so space is a consideration. I don't want to use small bottles of gas for a grill. I do have an outside connection, so I could hook into a propane grill, if I had one. Have not looked hard for a small propane grill, so they may be out there. My charcoal grill was very cheap, which is another factor. DW won't approve a $200 grill purchase. ;)