As I can't supply you the answer with what the best seats are, I can tell you the seats themselves are horrible! I have done the LAX-SJO-LAX flight twice now. The first time was in economy and I swore I'd never ride in the back again! The second time I upgraded to the front cabin and the seats were of course much better. The economy seats have absolutely no padding! I couldn't even believe it. TACA's flights were fine, on-time, etc. and I would fly them again if it were not for those horrid seats. Okay, enough ranting. Maybe someone else can really answer your question!