I need to go from Bangkok-JFK-Bangkok from April to end of May. I have secured round trip on JAL in First class using 220,000 AA miles. I enjoy JAL's food and service and three checked bags however their entertainment is weak imho. Today I noticed that I can purchase a r/t on Qatar Airways in J, for about $3300 round trip from Bangkok.....From Bangkok to Qatar, it is showing a 350 and from Qatar to JFK a 350 with Qsuites (i have never tried). Connection times are FAR better with Qatar and I am sapphire and would earn miles on AA I believe?. That said, I am in J and not First? I am also almost 6'5'' so space is one of my concerns. Thoughts from someone with more experience than me?

Thanks in Advance!