I hear that Drakengard 3 gets really good after you've beaten it four times...
...sadly, that's not even a joke.
This was a big mistake on the developer's parts: allowing misconception. Really, it's only beating the game ONCE, but they stick in the credits after each "Branch," so it feels like you're beating it multiple times. At the end of Branch A, you are really not done at all. It would be like beating 999 with the Submarine ending and going "Well, guess I'm done with this now."
I really enjoyed D3. It is repetitive, and it's incredibly rough in terms of gameplay, graphics, pacing (pretty much everything except music). That said, I found it quite compelling to play and I'm very glad I picked it up.
Dice: Zero develops as the game progresses. I felt the same after, hmm, maybe half of Branch A? You'll feel differently by the end. Well, I did anyway. And re: Dito - yes, he is, but he's also compeltely sadistic and messed up himself. If you're interested, the official site has novellas for each character. They're quite interesting.