The word(s) "best" appears 173 time(s) in 159 verse(s) in Quran in Muhammad Pickthal translation.

(41) And even so do We try some of them by others, that they say: Are these they whom Allah favoureth among us? Is not Allah best Aware of the thanksgivers?

(42) Say: I am (relying) on clear proof from my Lord, while ye deny Him. I have not that for which ye are impatient. The decision is for Allah only. He telleth the truth and He is the best of Deciders.

(43) Say: If I had that for which ye are impatient, then would the case (ere this) have been decided between me and you. Allah is best Aware of the wrong-doers.

(44) And We bestowed upon him Isaac and Jacob; each of them We guided; and Noah did We guide aforetime; and of his seed (We guided) David and Solomon and Job and Joseph and Moses and Aaron. Thus do We reward the good.

(45) Now have ye come unto Us solitary as We did create you at the first, and ye have left behind you all that We bestowed upon you, and We behold not with you those your intercessors, of whom ye claimed that they possessed a share in you. Now is the bond between you severed, and that which ye presumed hath failed you.

(46) Lo! thy Lord, He knoweth best who erreth from His way; and He knoweth best (who are) the rightly guided.

(47) How should ye not eat of that over which the name of Allah hath been mentioned, when He hath explained unto you that which is forbidden unto you unless ye are compelled thereto. But lo! many are led astray by their own lusts through ignorance. Lo! thy Lord, He is best Aware of the transgressors.

(48) And when a token cometh unto them, they say: We will not believe till we are given that which Allah's messengers are given. Allah knoweth best with whom to place His message. Humiliation from Allah and heavy punishment will smite the guilty for their scheming.

(49) They are losers who besottedly have slain their children without knowledge, and have forbidden that which Allah bestowed upon them, inventing a lie against Allah. They indeed have gone astray and are not guided.

(50) And of the cattle (He produceth) some for burdens, some for food. Eat of that which Allah hath bestowed upon you, and follow not the footsteps of the devil, for lo! he is an open foe to you.