Trying to get award tix USA-EZE and it appears that AA has almost no availablity while LAN Argentina does. I remember the 2-class LAN planes (LIM-SCL) as being OK, but not much better than EI (seat comfort only). But given the convoluted LAN structure, does LAN Argentina have those planes, the old 3-class LAN with 1 row of FC, or even better the new premium business class? In other words, has anyone flown on LAN Argentina on long-haul? It appears that only economy is offered for those flights entirely within Argentina.