if I could turn back time:
absolute favorite and without competition : C-Ration
for the present:
.1 RCIR of the french Army (just the nougat/fruit bars are horrible)
2. MRE
3. EPA (I had to much of them in my active time in the army and also in the present)
4. UK 24h ration (the most main menus are not good,I can not belive that two users vote for Brit-ration
I did not have the chance to test other countries ration.
As housil wrote, the current canadian rations are hard to get over here.
I just tried the old canadian daily ration they had at their training terms in Hohenfels a long time ago.
This daily ration was a small white cardboard box with :
one cheese/turkey/ham/tuna sandwich,
apple/orange/tomato juice ( small can, 0,2 l)
a very great pudding caramel/vanilla/chocolate from "Del Monte"in a can.
an apple/pear/or Orange
chocolate/fruit bar
accessory Packet with differnt things like spoon,fork,knife,mustard,ketchup,salt,sugar...)
I`ve never seen any military ration of the canadian army (similar C-ration) in the 80s, those white cardboard box looked very "canadian" commercial.
regards
Imon