I have no problem with Treyarch or Infinity Ward. Their games so far have been pretty fun from a splitscreen point of view, WAW made for a nice change from CoD4 and Nazi Zombies was an awesome addition. My only real problem with them is the same problem I have with most developers of FPS games - their seeming lack of ability to make games that can play splitscreen over a LAN. Four players on four seperate consoles and TV's is retarded and virtually impossible to setup.