The '42 Tombac has a pic of a beaver on the reverse; the '43 and '44 have the torch between the 'V' design. By far, the most common is the '43 (at nearly 25 M minted) then the '42 at 3.4 M minted; followed by the '44 which, I understand, has a known population of one (1) but 8,000 were minted.
Don....
PS: What you might find interesting is that on the Victory coin the rim denticles were replaced by the phrase "We win when we work willingly", in Morse Code, to promote the war effort.