You say that "so many have died," for the palestineans, but the Jewish people have been through rough times too. 6,638 palestineans were killed, which is a big number, but 5,933,900 jews were killed in the holocaust. All the palestineans had to do was give them a home after the big mess, but they chose to cause trouble and get theirselves killed by fighting.
I think that the israelis should get the land, because the United Nations gave them the land. Also, the land is holy for the Jewish people. The palestinians may claim that the land is holy for them too, but it is never mentioned in the koran. Even after there was a war, the Palestineans lost. So there are tons of reasons why the Israelis should get the land.