I'm also Accor Platinum and did exactly the same trip.

At Mena house, do not use your SNA. They do treat Titanium very well....but bear in mind the hotel is in transition before splitting into 2 properties. The best rooms do not have a pyramid views. Go for them and forget about the view, shared this with staff and they are all laughing when people are ready to lose the renovated rooms in order to get the view. Renovated rooms are stunning and they have tons of them to upgrade you, making it a super cheap stay.

In Luxor...hope you stay also in Aswan...Opera suite at the Old Catarat and Prestige suite at the Winter Palace are the way to go. Old Catarat is obviosuly way more impressive.

At the Dead Sea, the Marriott is next door to the Movenpick...stay at the Movenpick for 40% of the Marriott rate....with huge suite...so no comments here...

Petra....the simple trick is when you go...Marriott property is rather small....Movenpick have 2 hotels...and they like to "close" the Nabatean castle without telling anybodu and relocate people last minute to the one at the main door...no views, but ideal to access the sites. Do get a ticket for the night show, truly special....and I believe in being the first at the gate in the morning for private access to the Monastery...only if you are fit...did it 3 times, always special!

Apologizes to everybody for getting way out of the thread...and yes, I would use an SNA for the St Regis Cairo, solid chance you'll have one of the 180sqm2 suites! They have tons of rooms, no big issues with early checkin either...we received a 7pm check-out without asking much. They are terrific!