Wow thats two TOTALLY different types of games, you are talking first person shooter vs Real time strategy.
Left 4 dead is purely multilayer and looks to be the best multilayer game for 2008 the game not only encourages muti if you go out on your own you wont survive.
End war looks awesome for an RTS depends on what you want. Count me in Left 4 dead camo
PS3, WII and 360 all great systems depends on what type of console player you are.
Currently playing Call of Duty Modern Warfare 2, Fallout 3, Halo ODST and Dragon Age Origins is next game
Xbox live:mywiferocks