Not this again!
It is incredibly hard to compare intelligence agencies and to measure their successes or failures. It is due to the nature of their work. You will not hear or read about the work of clandestine organisations that dabble in espionage, surveillance, counter terrorism, and even wet work is necessary.
The fact that a lot of Arab intelligence agencies are still wrapped in mysticism and secrecy is an indication of at least some level of competence. Their reputations among the local populace and even Jihadis should also give you an inclination of their prowess. However, not all are born equal.
As for using Pakistan as a bench mark then I must say you are being far too patriotic. Pakistani intelligence has for decades blundered its way through the region creating a menace that has resulted in thousands of lives lost both at home and abroad.
I would prefer our intelligence agencies to remain in the shadows. Having a reputation either for good or bad is an indication that something has gone terribly wrong.