The characters and plot I felt were handled better in P4 then in P3 so it goes to that game in that regard.

Combat I felt take a step forward with the changes to the knock down system, and a step back with the reduction of Physical attacks to just one type. In the end I think the step forward was bigger then the step back though, but I do hope to see a return of three physical attack types.

As for the dungeon crawling, I think the different level designs are much more well done in TV world then Tartarus, and didn't feel like they just designed one small set of rooms and then re skinned them for all the floors.

I know Wolfy here liked being able to split the group to cover ground faster, though to be honest I don't miss that function at all. I was way to paranoid of party splitting in that game.

I liked P4's premis of giving certain dungeons a bit of a gimmick, though it wasn't really that impactful most of the time.

The Social links in P4 were also better done I felt, and I loved how the links with your party members reflected in battle. Great touch right there. However P3 does still hold the single best Social Link with Sun, that one is just so damn awesome.