CoD4 or TF2?

Hi! =)I tried both and I mean, they are two great games... My friend and I want to buy a game that will be fun to play together, that will involves teamplay and that we will play for a long time. We like the competitive side in gaming too.So which one should we get?CoD4 or TF2?
TF2.......CoD4 MP was boring (to me anyway)CoD4 or TF2?
TF2 had that extra bit of quality that would make me come back for more, CoD was so like the other MP games i've played
CoD4 for... well.... limited creation of some stuff by yourself, and TF2 for teamwork and being a Valve game.
Team Fortress 2.
The Orange Box is really worth the money you'll put into it.. Portal is great and HL:2 is.. well.. what you would expect from a great single player FPS.On the other hand, CoD 4 has really great graphics and is more of a war simulation.. I must confess that I'm growing tired of the cartoon look and gameplay of TF2So.. If you prefer a real war feeling.. I'd go for CoD 4.. if you just want a great multiplayer FPS.. I'd go for TF2
TF2 for teamwork for sure. I find that in CoD4, it's much less about teamwork and more about getting kills to rank yourself up.Although if you decide for CoD4, the best way to find a server with team work would be to get into a clan that plays Search and Destroy a lot.
buy both of them....sell your cat if needed!i love TF2 and it's gameplayCod4 is amazing as well but it's aggreivating because it consist of nade spam with bullet penetration.M4 grenade perk n00b combo as some call it.
Flip a coin, heads Call of duty 4 and tails Team fortress 2.
TF2 has better teamplay, but I enjoyed COD4 multiplayer more than TF2.
DOD:S! But since that's not an option, my vote goes to TF2 :)
i have to say that they both are amazing games.i have played both 7 + hours and if you want the team work go ahead with Team Fortress. that game demands teamwork to be successful. i myself would buy COD4 though because you get an amazing campaign and the multiplayer unlike system is better than any.