Thanks for the thread. It'll make purchasing games/DLC easier knowing all the various editions that are out there.
Edit: May want to add Forza 3 Ultimate Edition to the OP, which is on sale from Newegg
for $16 at the moment.
Edit: The Assassin's Creed games have had "GOTY" editions available from the UK which have some DLC included.
Assassin's Creed 1 Director's Cut + 2 GOTY
Assassin's Creed Brotherhood