I'm about to book a paid business class tickets.

I have two options on the return.

1. Fly Qantas 330 200 on an angle flat then fly the Qatar a380 from Bangkok to Doha.

This is about a 9 hour flight on angle lie flat.

2. Fly Cathay through HKG on a lie flat. Then onto Doha.

Allows you to visit first class lounge always nice.

This is a paid ticket so I'm trying not to make a mistake. Is the a380 on Qatar worth dealing with 9 hours on Qantas partial lie flat?