One as bad as the other in my view.
The biggest difference is the Israelis are far better at
PR and, almost 60 years later, still use the holocaust as a trump card to justify their acts of terrorism against Palestinians in the occupied territories. The old line of "We're only defending ourselves" has worn so thin it's transparent to most thinking people.
I have the utmost admiration for the US and all it stands for. Great shame its foreign policy in the Middle East is so pro-Israeli because of the enormous Zionist lobby which prevents rational thinking.