The Al Jazeera poll was an internet survey, not a poll. Pew have a more credible reputation for independent research than a media outlet run by the ruling family in Qatar .....
Read the article. Your statement is incorrect. 62% of Pakistanis don't have an opinion .... not muslims. (OK, 95% of Pakistan is muslim, but you are displaying your bigotry). In Malaysia, only 62% are muslim, 60% in Burkina Faso and 50% in Nigeria.
I doubt that Pew (or anyone) could conduct valid research in Saudi, or Iran. Interesting that the Palestinians are very anti-ISIS.