I am sorry but Diablo 2 is now just some very badly animated pixels with a clunky fighting engine on top. D2 ... "dark" ... I would say badly aged yes.
Nothing more nothing less.
And for anyone wanting a H&S game to have a story: read ONE chapter of Shakespeare 80 times in a row and tell me if you are surprised after the 81st time ...
If NPC's talk too much in D3: blame it on SW TOR's crap story telling that was going to "take the world by storm" as talkies was gonna be the 4th pillar of game design.
Now we know better.
Anyone playing a H&S for the story ... is playing the WRONG game.
But anyone telling me that D3 is not MILES better than D2 in both engine and 3D graphics is not even sincere.
And ... a good responsive fast reacting engine is ALL that a H&S needs. The fact this speed is achieved in an on line mode is awesome.
the rest is blabla bla "gear/stats" and blablabla "how to acquire it through grinding or in the case of ALL D games: through an external cash shop OR a built in one"...