Well people will tell you that Intel is more realable but you never know. Personally I would never buy an Intel Chip. Things have changed Intel is not longer the powerhouse it once was. They dont even have Blue Man group commercials anymore. What a shame. But I guess it says something that they even have commercials.
AMD takes the money they would have spent on all that fancy advertising and passes it on to the consumer.
Oh yeah and you cant leave out IBM they have made some good, but non mainstream processors lately. They finally won over Apples affection.