All dates are not created equal, and that's even before they start to dry out.
Fairway (New York) has orange boxes of Medjoul dates form the Jordan Valley, a brand called Delilah. Apparently because this is what she tempted Samson with. Run, don't walk, to Fairway and buy some. Don't bake this Shabbat, serve these for dessert. They are unbelievably delicious.
That said, I do understand that there are cultivars or varieties of dates (like apples and oranges have) But Not every date labeled Medjoul is delicious, some are desiccated and others tasteless. Well, you can get a tasteless Valencia orange, too. No surprise.
What I don't understand is the date harvesting season. The Delilah brand Jordan Valley medjouls that I am raving about are a rich dark brown, with wrinkled skin, about 2" long, dried but moist to a perfect melt-in-your-mouth texture. They are not fresh (Fairway also has fresh dates this week, a yellow kind called Barhi. Were they just harvested? Are there seasons I should be following to get perfect dates? What other cultivars should I look for.