In terms of amount of content WO3 just can't be beat, especially with all the DLC added in. I will say that it suffers from rampant map recycling and the issue I noticed with WO4 where you're punished for frequently switching characters because everyone joins at level 1 and you don't get enough growth points to make full use of the game's massive roster. That aside, I love how everyone has their unique movesets and the mindless grind is certainly a fun one. All the guest characters like the DOA girls, Ryu, and Sophitia are great additions too and it was always fun to see which characters I would recruit next.