What has the world come to?
The situations where a man would need to eat another man to survive are rare. For a start you would need to be in a place completely barren of wildlife and plant materials.
Our special forces, and even ordinary troops are trained in surviving these types of conditions. I'm 100% sure cannibalism is not in the training manual.
Instead of contemplating the taste of human meat, why not study the environment and learn about what is good and what is bad to eat? Little tricks that you can learn to help you survive should something like this ever happen.
There was a guy on his own lost at sea for 30 days in an inflatable raft. He had no food and very little water. The raft had a hole in it that he had to ingeniously plug. He survived by catching fish with a harpoon spear, and eating them raw.
Would his situation have been different were someone else aboard with him. Would he have looked at them and licked his lips in anticipation of what they might taste like?