Can I vote for the earliest (and personally) and best Dreamworks movie which is Antz?
It's better than Pixar's attempt, A Bug's Life (Kurosawa inspired or not, it's really not that good).
No one seems to credit it, but it's a very good movie, and with maybe the exception of either Shrek or Shrek 2 (I haven't seen How to Train Your Dragon yet, and I hear that is fantastic), There is very little I actually like from Dreamworks (I don't directly reference their Hand drawn animation department but Prince of Egypt is also a very good movie).