I'll be going with DmC. As I've said before DmC is a more sophisticated version of DMC4 in the combat department.
Honestly, though, they both bring so little to the table from each other's predecessor that I would describe them as baby steps. DMC4 only added a tiny bit from DMC3 and DmC from DMC4. Everything that DmC had to offer should've been in DMC4, that would've been more acceptable than getting a sequel's worth in 2 games.
I don't do jump canceling, buffering, or any other advanced technique so for DMC4 to have all that in it's favor means very little to me. DMC4 is rather restrictive compared to both DMC3 and DmC, that's a step back for them. DmC has no lock-on, WTF! DMC4 needlessly had two characters, each with very diverse gameplay making both feel like half a game, which it is. DmC is clunky, clumsy, unbalanced, and poorly thought out. DMC4 is takes time to master, it makes it a chalange, that's a double edge sword that makes it very appealing to some and somewhat unappealing to others. DmC is a very simplified version of it's predecessors and that removes a great deal of it's appeal.
Anyway, To be continued...
Duty calls.