D2 was challenging and fun, somehow PS3 version of D3 was uh oh, enemies, what enemies for me, something is a miss with difficulty level.
Played it with my spouse, we basically rolled over everything, hardly any resistance.
Story didn't impress either.
Didn't try Overwatch, but if I do, it will be with mouse and keyboard, not weird "aim with it as if it were a cannon" controller thing.
In sales D3 was even one of the biggest success stories on PC for a AAA game I think. The game sold in its first week like 13m copies or something. It was super insane as far as I remember. Sure fans were disappointed with the product but at least Blizzard took it to heart and redeemed themself with RoS later.
D3 had a supersolid foundation: D2. And if you take that into account, 13m copies are nowhere as impressive.
In 2008 11 (!!!) million players were still playing D2.