Not to take a stab at anyone here, but the sums mentioned above seem very, very short sighted.
Do the sums on the End of Service Benefit after 10 years at FZ vs 10 years at EK and it separates the men from the boys. Without getting into the fact that the Provident Fund that EK get will probably out perform their EOSB. True to say that FZ does NOT even compare.
Someone also rightfully mentioned the bonus that EK folk get on a fairly regular basis. Beats the 'Bone-Us' we get over at FZ.