I'm traveling with my partner on a 4-hour, red-eye from SFO to MEX in a few weeks. Rest is important. I paid to upgrade from second row emergency to first class for the extra comfort. I'm 6'1". We can get any row. Which seat would you choose. If the seat moves forward, I presume that legroom will disappear. There seems to be a recline, however, so I don't really understand how the seats work. Thanks in advance for your advice.