Firstly, I S ranked the original Darksiders. I absolutely loved it for it's modern spin on the Zelda formula, the God of War combat system, etc. That being said, I'm not enjoying Darksiders II nearly as much.
I'm not sure but I think it's due to the loot system. I detest it to the core of my being. I hated in in WoW and every game since then to try incorporating the idea. It seems to me that it has severely impacted the formula the original game used. In the original Darksiders you knew that every chest you found was going to be important. It would have an abyssial shard, etc. It's been awhile since I've played the original game but I remember being thrilled with every chest I found. In Darksiders II, I couldn't care less about most of the chest unless it the ones that have the maps or keys. Yay! Another green piece of loot dropped *troll face*
The reason I mention my OCD is because now I feel like I need to spend hours running around trying to create and find the perfect gear instead of just enjoying the game. I also don't recall running into bosses I couldn't beat. I ran into Gorewood and was annihilated and had to come back later. The OCD part of me says, "If you can't beat him now then you're doing something wrong!" Argh! I made it all the way to the bottom of "The Deposed King's Lair" last night just to be curb stomped by the end boss. Nothing up until then could even scratch me. The loot factor in this game as taken away my ability to just enjoy exploring because now I have to tweak my character to a hardcore degree in order not to run into a brick wall somewhere.
I'm pretty sure I'm just being nit-picky. Logically I know the game is technically and mechanically better than the original but some of its new systems drive me nuts.