There are so many different propane camp stoves. You have a single burner, 2 burners, 3 burners and then some have adjustable legs and side shelf. Some you can add a fryer pot, cast iron 2 burners for bigger cooking jobs, drip pans, toaster, grill and griddle, cooking cup, special lighters, non-stick everything, and the list of features go on and on.
Then you have a stove in a can, Esbit, Triox, pocket rocket stove, and more. But the thing you need to think about is where are you going to be using the stove like camping, backpacking, fishing or hunting, tailgating, etc.
There are two that stand out as being a little different is one stove that has a hot water tank with a spigot for instant hot water. And the other propane camp stove looks like a bug and they call it the Grasshopper single burner, 10,000 BTU, uses a 4 oz. propane cylinder and folds up. One thing they all have in common they all boil water!!