If you get bored of Dom, don't forget the Hennessy Paradis...!

DYKWIA presumably at this point is in a Dom-induced haze and has forgotten to mention the delights of the DXB F lounges, which I can give you some highlights to:

0 - pick up an A380-only cloth bag to keep all your on-board amenities in (and additional things in the lounge)
1 - book a spa treatment. You get 15 minutes free, but can add on an additional 25 minutes at a reasonable price.
2 - Shoe shine
3 - 3/4/5 course meal in the lounge. The quality from the a la carte menu is excellent. If you land at breakfast, you can have the main evening menu (and vice versa). Balik salmon on the buffet should be acquired in good quantities. If you are in Concourse B, there is a sushi chef.
4 - The champagne in the lounge is relatively average, but right now there is a Chateau Pontet-Canet 1998 floating about so switch to the red.

Alternatively, do all of this but first, with a 9 hour layover - have you considered leaving the airport and wandering around Dubai? (assuming you are from a visa-free country/have a visa). Have a brunch/lunch/dinner somewhere in Dubai, see some sights, go to a bar, pop back to the airport. Taxis are cheap - and on an F fare, you will have complimentary chauffeur drive most likely - and most locations are about 30 minutes max from the airport. Immigration and security are painless at DXB - you will have plenty of time to be back in time for the lounge.