With all said in this thread, I just want to point something:
Don't underestimate aesthetics. People complains the revamped (Ultimate) version is too modern, Instead, I feel Legacy too backward for a WWI game. If not by the tanks, battleships and planes (and the WWI photos), Legacy resembles too much to the typical Napoleonic Wars that is base in the RISK-like games like this. As a matter of fact, some roleplaying games made in S1914 always evoke dates too far preceding to WWI. I know aesthetics isn't the priority in these revamp cases, but clearly the revamp version is more WWI-esque than Legacy.
People are right when says Legacy is better than Ultimate regarding playability, simplicity, gameplay, etc. But my point is, as some people had said before, not everything about Ultimate is bad.