I'm planning either:

AMS - LIM with KLM's 777-200 (looks like the new business cabin as it say the seats are 1-2-1?) or
CDG - SCL with AF's A350-900

Points wise, the AF is roughly 10k more in miles.

I've flown with KLM's 787-9 which I liked and also their 777-200 (2-2-2) which I didn't like. Never flown with AF.

What's the better option and why? Is the extra 10k justified?