Richard,
I agree that for 2 in 1 utensils ti mug works. So for simplicity of kit the ti mug wins.
Yes, mugs are taller-than-wide and thus inefficient in shape and also, well, being titanium and wasting fuel by being a pro heat conductor relative to aluminum.
What's a cooking backpacker to do? See below.
MY COOK KIT:
Pot-> 3 cup Open Country anodized aluminum OK for one, barely enough for two.
cup-> plastic and moulded measuring marks
cut down storage bowl-> very light and used for eating and to transfer food from pot so I can use the pot for other cooking tasks
spoon-> long handled Lexan (also, no longer sold) good for FD food bags
no-handle skillet->(yes, a skillet) 5" ceramic coated aluminum (only for winter trips unless I'm cooking for 2) skillet is for frying FD scrambled eggs and pancakes so it requies a
small spatula->1/4 size but it does work well
pot/skillet gripper-> skeletonize aluminum (eliminated need for utensil handles)
The bowl and cup fit inside the pot. When carried (seldom) the skillet sits in the stiff sack beneath the pot.
As mentioned earlier, I "live to eat" so I do actual cooking, as in boiling spaghetti and cooking the sauce from dehydrated "sauce leather". That explains my cook kit. It is minimalist but adequate.
Eric B.