I'm getting ready to book my next OWE. Looking at SCL-MAD options and I'm trying to decide between IB or LA in Business. I've never flown with either one. They both appear to have new lie-flat business seats. LA seems to have better IFE. However, it seems that LA's service in flight is not so great. The most important thing to me is seat comfort for sleeping as well as wine. Does either one have truly flat seats?

If you have flown both new J products please help me decide. Or do I forgo my AA Elite Bonus miles and fly BA EZE-LHR instead in NNCW?