What is your favorite torpedo(s) ?

[Chisum]

Long time I wanted ask you: what torpedo(s) is the best in your opinion ?

Personnaly I doubt again.
For a single merchant I often use the T1 and I always hit.
But if many ship with escort, the T3 still the most efficient.
In the end of the war, the T5 acoustic makes a good job too.

Some torpedos I don't know really.
The T1 LuT 1 for example.
Not enough experience.

Note that this topic is inspired by the difficulty I had to choose my torpedos recently, in June 1944. There were so many choices that I really don't knew what was best...