Team Fortress 2, because it lasts the longest, has a lot of charm, is a funny game, balanced, really fun etc, etc.
While Half-Life (particularly 2, didn't dig the first one) and Portal are excellent games, I just find myself liking Team Fortress 2 abit more, especially since with HL2 and Portal I have memories, TF2 I'm playing still.
While Half-Life (particularly 2, didn't dig the first one) and Portal are excellent games, I just find myself liking Team Fortress 2 abit more, especially since with HL2 and Portal I have memories, TF2 I'm playing still.