Originally Posted by
seaskybound
Instead of spending many many thousands of $$$$ to not arrive exhausted (and FC/biz is certainly not a guarantee of sleep, its less than 9 hours with meal services, a movie you may effectively get 4-5 hours of sleep) just add a day to the trip and spend the first evening recuperating in a hotel (maybe near CDG as opposed to city center)
if you are a businessperson who lands and must run to a day of meetings then it may make sense
I 2nd this, but it's a time vs money trade off. If it's a really short stay and you're splurging...then I'd do Business, but otherwise I'd do economy and use the money you save to stay 5 star.
A nice balance is also to look at Premium Economy. BA/VS do a fair product and I think AF has something on offer as well.