Looks like a DONE5. Is it?
You will love LAN. It is pretty awsome for business. At least if you get the new config. IB
is slightly worse, but still far better than what you are used to. RJ
is comparable to domestic First. Nothing to write home about. QF
looks pretty good too, but I have not flown them yet. I prefer BA
since they offer flat beds.
All in all I think LAN is your best seat and RJ
your worst. But since so far you only flew domestic business you will be in for one major positive surprise. Do not forget to enjoy the lounge experience.
Piece of advice: with your itinerary you may want to consider joining QF
Enjoy the trip! Doing one myself too...