744 in F is going to be way better than 346 in C. TG's C is the angled lie flat except on the 77W. F seat is lie flat, tons of space, OK IFE. They feed you very well. 744 F cabin is fine...as long as you don't suffer one of those dreaded last minute substitutions. But it's a risk I would definitely take.
Seems like a no-brainer to me.