Selling G3 - Going back to completely stock topic

Hey everyone,

I'm selling my G3 and therefor need to bring it back to completely stock again, meaning no custom rom, root and custom recovery anymore.
I searched the forums and found these two solutions:

Flashing the G3 back to Stock using LG PC Suite and LG Flash Tool 2014.

Would you recommend one solution over the other one?

Thanks in advance!