AA73, I wouldn't put my family into old aircraft (like AA has) for a trip, but sometimes you don't have a choice... those A300's you guys had until a couple of years ago were not maintained very good... and the B767's?? well, let me tell you the training the pilots get in LAN (and I'm sure in TAM) is very strict, professional, and to Airbus Standards. LAN has had the same criteria for hiring people for a long time, and besides a couple of incidents, the accident record has been 0 for a long time (hope to keep it that way for a long time).
so please don't speak before knowing a bit about the other companies.
ps. I have a lot of friends flying in US Carriers (regionals and majors) and I know how it goes the Airline business up there, and in South america we have nothing to envy you guys.
Happy Landings