It depends on opinion, which game is the best for you is most likely one of the first you ever played. For me it's Zelda Ocarina (and yes, it's pronounced OAK-UH-REE-NAH not AWK-UH-REE-NAH) of Time. Halo might be 3 or 4 in placement, and the halo game would be Reach, or maybe 5 if it's really good, like I'm starting to think it is.