I too would like to know the answer to your question & I asked a similiar one about Canoe a few weeks ago & got little response .
My own research shows that the most common & current one thats available cheaply ( especially on Ebay ) is the EDT & 99.9% is the current formulation .
I suprised a few people by mentioning a cologne version , which i kept pics of .
I beleive the EDC would be from the late 80's by the looks of the bottle & box .
I hope we get some responce to this , otherwise i'll just get an EDT & EDC to compare , sometime next year !