2nd Game on Aatrox Rework, I Like It
The new version of the champ just feels more fun to use. Less punishing health costs means that it's easier to play from behind and your trades feel better, and while you don't heal as much you still heal a ton and hit for a lot of damage.
However, the best change is to the Blood Well. No longer can you jump into a fight with your passive full and revive ready. You need to prepare it and know when it will activate, and stay in combat to keep it up. It's similar to Vlad, only without the better Q. And if you do it right, it lasts a while. The last time I had passive up in my most recent game I kept it up for about 10-12 seconds.
Actually, it's kind of satisfying.
I could see some more work on Aatrox during the Diver update, but I think right now he has definite outplay potential as well as appropriate counterplay besides CC/kiting.