Ok, I bit the bullet. I booked on Jetihad in F AUH-BKK outbound and am flying back Qatar A380 F BKK-DOH-AUH. It'll give me a comparison and 2 first times for me since I haven't flown Etihad or Qatar F before.
I'm looking forward to the trip! And the Jetihad flight in F means I'll need to book another F flight on Etihad metal in the future for a true comparison and experience!