@13th
Yes, the MK84 is 2039 lb, which is 927 kg, almost as much high explosive as the Shahab 6. I don't know what sort of terminal guidance these missiles will feature but I don't think they'll have a CEP of less than 0.1%. It is unlikely that they'll have GPS/Galileo, let alone the military grade version, and gyro based INS alone can only guide to a city at best from 1,500 kilometers away. So, Iran would naturally use these for attacks on the general Israeli infrastructure/public.
@Sherman
You're right, Arrow is a mystery as of now. It 'sounds' good on paper but we'd never know whether it really is or not until it's deployed and used at least in a realistic ballistic test. Patriot did make a bad name for itself in the Gulf War but the PAC-3 is currently being marketed as a pretty capable defense system. It's deployed by many NATO countries.
Are the Israeli Patriots PAC-3 or an earlier version?
South Korean PAC-3