I'd have to agree with the majority of the posters here. Good advice. It depends on how you will prepare your meal, viz:
Boil water, Rehydrate in Ziploc/Cozy
450-550 ml (~15-18 oz, short and wide, better fuel efficiency, more stable on teensy solid fuel stoves. I like a very simple SUL - UL cook kit, so this pot is handless).
Cook in Pot, Eat in Pot
700-900 ml (23-30 oz, with bail wire handle to hang from tripod, Ray-Way style).
However, with so many good rehydrate in ziploc or cozy recipes and meals, cooking in the pot is 'alien sighting' rare on my trips!
YMMV as always, esp near Area 51 :-0