LAN over Taca. Over AA and UA. LAN long-haul business class outclasses SQ: seat turns flat at 180, thick white duvets, hard-bound menus with every dish paired with a wine. Boeing signature interior (a la 777) on LAN business.

I've also flown LAN EZE-GRU in coach. You get the same IFE in coach (except you get noise-canceling headsets in business). And they serve wine in regular 750 ml bottles in coach.