First off, why are you comparing the two games graphically? DOA 4 was released on 360, Tekken: DR is a remake of a PS2 game. Wait for Tekken 6 for graphical comparisons. (T 6 will look much better than DOA 4 did)
Second, why haven't you gotten Virtua Fighter 5? It's better than both of them combined and it looks gorgeous.
Third, Soul Calibur IV comes out in 3 months and kills both of these and looks better than VF 5.
3D fighter hierarchy:
Virtua Fighter> or = Soul Calibur (depending on the SC game)>>>Dead or Alive>Tekken>Everything else>Mortal Kombat>MK Vs. DC

Thanks to Blacksaber for the sig!







