@
craz. I would go with the most convenient schedule - the differences in seats are minor from my perspective, but I’m 1.70m or 5’7” and seat width is never an issue for me.
However, each to their own - some like to fly the 380, others prefer to avoid it.
From an operations perspective FRA is twice daily, and MUC is once daily. THAI is infamous for equipment changes, so MUC could lose the 77W for a 788 (inferior J product). Certainly, you want to avoid the 744 as the seats are early generation angle flat.