Reasonable on 12 October 2009
Half Life 2 is the king of SP FPS IMHO. The champ, the one to beat. And with so many FPS focusing on MP over SP these days, I don't expect it's campaign to be topped anytime soon.
CoD4, as Zen points out, does have some great moments, but it's short and unfocused next to HL2, it's also has far less variety and shows that while IW are masters of combat set pieces, they aren't master of narrative flow over an extended time with proper moments of ebb and flow.
But to be fair, given that Half Life 2 is all about SP, with the MP left to other titles, it does have a perhaps unfair advantage over most other titles.
Try to be reasonable... its easier than you think...
