Is a Nalgene bottle better than an army surplus canteen?

I bought a canteen in a local "military supplies" store and I ordered a stainless steel GI CANTEEN CUP and GI CANTEEN CUP STOVE STAND from Brigade Quartermasters. (www.actiongear.com).

Is there a significant advantage to the Nalgene bottle and cup?
_________________________
"The mind is not a vessel to be filled but a fire to be kindled."
-Plutarch