As weight within reason is not a problem for us my preference generally to pack is the 12" Mulley (cast iron) and the Aussie Camp Oven (12" spun steel) a baby cast iron oven and the Volcano, Camp Chef Table plus my kitchen table. OOOps the
heat beads, starters, matches, chimney, Mair Lifters and lid stands.
Sparky felt he needed more gas for his Coleman Gas Oven (which folds flat and in future will probably take the big gas thingy which fits under the
Camp Oven Mate (he likes this as well). He likes his two tables and doesnt know why I need the above.

Many feel I should learn to drive a 4WD and have my own set up

For me its a matter of what I find easiest to use and the circumstances of fire bans etc.
The main use I can see for the
Bedourie shape is if you buried it the overhang on the lid would probably keep anything out of it and for giving the dogs water in.
You can use any kind of camp oven in the
camp oven mate, I bought the aussie camp oven for the higher sides, lip on the lid and lightness. Mostly I only cook for two so I didnt give getting the larger size a consideration. Many in here have large family/friend cook ups where the bigger sizes make more sense. It has a good lip to hold the ashes and can be used as a fry pan similarly to the
Bedourie. I dont feel its as forgiving temperature wise but with practice should do all of the cooking others do in cast iron.
You couldnt use it on a plastic table like I can the Volcano but that is not really an issue of importance for most.
The
COM packs reasonably small. I hate using gas and thats probably a reason at home I would rather light up
heat beads and use the volcano or my Camp Chef Table and cook in my cast iron.
Many swear by the Cobb but although I cooked all the regular things in mine I didnt enjoy using it and Sparky said the roasts werent hot enough and it "rattled". It has a few new accessories now but mine lives under the staircase totally unused and unloved. There were a lot more used at the last ct outing I went to.
The Volcano suits me in every way, it might not suit everyone, you are restricted to a 12" oven or smaller but it supposedly can take up to three 12" stacked and somewhere on the net is a photo of a rather substantially built male standing on one. Again cooking small amounts with it is fine but for those who cook in 4 or more ovens around the fire it would be just one more thing to pack.
I like to cook away from the fire (cooler in summer) and at table height. I was told by a few when camping that they had trouble getting oil hot enough to deep fry. I used 25 beads and got exactly the temperature I wanted in Aussie Camp Oven in the Volcano. It had better access to the pot than the
COM.
THE SHORT STORY IS GET TO COGS AND COOKING COMPETITIONS - THINK ABOUT YOUR NUMBERS AND WHAT YOU WANT TO COOK - AND THE WEIGHT FOR LIFTING OR PULLING - THEN DECIDE - ALL CAN COOK THE SAME THINGS WITH PRACTICE