Travelling to Israel - help to divide time between areas [closed]

This isn't meant to be a complete answer as-is given the broadness of your questions, however, here are a few suggestions:

1. Since you are flying out of Tel Aviv, I would recommend allotting the last couple days of your trip to touring Tel Aviv so you don't feel rushed in getting back to the airport. On the other hand, you'll be flying out on a Friday, and Tel Aviv has some great nightlife, so you might alternatively decide to stay there over a weekend if you enjoy clubbing. The other benefit of staying in Tel Aviv over the sabbath is that relatively many restaurants and stores stay open in that city.
2. I'd recommend combining Jaffa and Tel Aviv. Or is that what you had planned?
3. Keep in mind that the public transit system basically shuts down on Fridays and Saturdays in Israel, so you may need to plan around that when deciding where to stay over the weekend.
4. I would suggest trying to spend one of your Fridays/Saturdays in Jerusalem. It looks like you may have planned that for your first weekend. Saturday morning take a walk through the city; it is really interesting seeing a city that has completely shut down. Just keep in mind that if you do decide to spend a Friday in Jerusalem you're basically stuck there until Sunday. Also make sure to plan in advance where you are going to eat during the sabbath since most restaurants close.
5. I agree with SergeS: Unless you really want to do things leisurely and/or you really enjoy rocky beaches, spa treatments, and extremely salty water, I don't think you need more than a partial day on the Dead Sea. I'd recommend climbing Masada early in the morning (~04:30am) to see the sun rise from the top. Climb down (or take the cable car) and have breakfast in the new hostel at the bottom (they have a relatively large and decent buffet of traditional Israeli breakfast foods). Then spend the rest of the day at the Dead Sea (it's only 15 minutes away).

I think answer is - no anyone cannot suggest how many days to stay in specific place. But - make complete list of all you want to see - you will know how much time you need to each place (add some time for monuments, some time for food etc.), plan trips between - and you can figure out how much days you need for each place.

My own recomendation is for Dead sea - half day is enought - there you can do nothing else, that swimming or relaxing in spa.