So, I am in a minority here. I enjoyed the game actually. Of course I also like Warhammer 40k, so that basically means im just a prick.
I bought Darksiders because I typically don't buy games where I am a bad ass (I don't like Space Marines =( ). War's personality was appropriately lacking. I think it is somewhat funny that Yahtzee mentions he never has to expierience standard Human life expieriences, and then goes on to swing around and mention that War has no real character/personality, I think that is half the point isn't it? Now to say they couldn't have done a better job is incorrect, but it seems the reasoning is flawed there.
Darksiders could have been better, but would I say it was bad? no. Could it have been better? of course, but that si the case with all games after the fact. With the exception of portal, which was amazing and has a special place in my heart, probably the place that used to let me feel love.
With that said, I like Warhammer 40k.. So I am a prick.
And yes, War is actually Arthas in disguise, Arthas played TF2, rolled a spy, and is now disguised, badly.