The Egyptian wines used to be very bad until mid-90s. After that, Gianaclis, Egypt's biggest wine producer renovated their wine-making. Also thanks to a little deregulation (thus a few new brands to compete), quality of Egyptian wines improved greatly. Still not good enough by international standard, but surprisingly better than 10 yrs ago.
Judgement of taste is naturally personal, but here are what many (not all) foreigners living and drinking in Egypt (including me) agree.
-In general, red is better than white.
-Among red wines, I want to say "Chateau Grand Marquis (Red)" is better than more popular Omar El Khayam. (Most of my wine-drinking friends agree to this, but not exactly everybody.)
-For white, maybe "Obelisk (white)" is better than others. But it can't satisfy those who usually drink European or Californian white. To me, Obelisk White tastes like grape juice, not wine. By the way, avoid the old brand "Ptolemee."
Imported wines are ridiculously expensive. You'll be only angry when they tell you the price of a very common beaujolais.
Egyptian beers have improved dramatically in these 10 years by deregulation and renovation. Now they are perfectly drinkable and taste OK. There are several brands and each of them have a couple of variatioins. Most popular are Sakara Gold and Stella Local. Try both and decide yourself which you like.
If you like whisky or brandy, best to bring a bottle or two with you.