I have spent the last 3 days visiting Abydos & Dendara (1 day) and Luxor (2 days) with my guide Ahmed Haggag Ali.
First of all, I would highly recommend Abydos to anyone (even if it is way out of any route, +3h by car from Luxor). Abydos is truly a special place, thanks to its colorful paintings and design. And Ahmed provided me with all the history and explanations related to this temple. He knows eveything!! He has been able to answer all of my questions so far (and believe me, I have had a lot!) We later had a delicious 'fuul' in a local restaurant (see pic).
Luxor is, of course, a must see if you plan to visit Egypt. I spent one day in the east bank and another in the west bank. The Karnak and Luxor temples on the East bank are fascinating, and the Valley of the Kings in the West bank has beautiful tombs. Of the 3 tombs I visited, Ramses III was my favourite, extremely colorful. If you have the budget, I also recommend the hot air balloon trip, which is just breathtaking.
I will spend 3 more days with my guide Ahmed Haggag Ali to visit Edfu & Kom Ombo, Aswan and Abu Simbel, and I am very much looking forward to it!
