SEA-PHX, just chose MCE in advance. I think I had an exit row - so that was comfy.

PHX-MEX I did get upgraded to first class! Kind of suspected that might happen for the MEX flight - being a lower cost market.

I've had good luck with some West Coast regional routes (Embraer 175) on Alaska. I've always been able to choose Preferred seats (Ok maybe I paid once - $15 or what not)...and as of today - 3 / 4 upgraded to first class! These are not ultra high demand routes.

So..this One World Ruby status is turning out alright. I also have a Alaska Summit credit card, that might have been a factor on 1 segment? not sure. Other two flights have open first class seats, after upgrade.

Maybe I'll spin the wheel again on AA / Alaska out of Costa Rica - USA next year. I could guarantee a lie flat for 35k Aeroplan on Copa, or use half the AA mileage in econ and just hope I get upgraded or at least can choose MCE. Off-season CR flights, so good probability. TBD. Ticketed flight down with lie flat Copa (And a couple econ shorter hop connectors - maybe those get upgraded? no upgrades as I don't have Star alliance status) -- which I value more highly. Return flights you go home and chill...so somewhat less important. A lie flat from PTY-SFO would be nice though.