The divine criteria of what really is the best as mentioned by the very best himself, Prophet Muhammad (peace be upon him).

1. "The best of the Muslims is he from whose hand and tongue the Muslims are safe." [Muslim]
2. "The best of people are those with the most excellent character." [Tabarani, Sahih]
3. "The best of people are those that bring most benefit to the rest of mankind." [Daraqutni, Hasan]
4. "The best of people are those who are best in fulfilling [rights]." [Ibn Majah, Sahih]
5. "The best of people are those who live longest and excel in their deeds, whereas the worst of people are those who live longest and corrupt their deeds." [Tirmidhi, Sahih]
6. "The best of marriages are the easiest ones." [Abu Dawud, Sahih]
7. "The best quality of your religion is scrupulousness." [Hakim, Sahih]
8. "The best of your religion is that which is easiest." [Ahmad, Sahih]
9. "The best of the prayer lines for men are the first rows, the worst being the final rows. The best of the prayer lines for women are the final rows and the worst are the first rows." [Muslim]
10. "The best of you in Islam are those who are most excellent in character as long as you deeply understand the religion." [Ahmad, Sahih]
11. "The best of you are the best of you in fulfilling [rights]." [Ahmad, Sahih]
12. "The best of you are those who are best to their families, and I am the best of you to my family." [Tirmidhi, Sahih]
13. "The best of you are those who feed others and return greetings." [Abu Ya'la, Hasan]
14. "The best of you is he from whom good is anticipated and safety from his evil is assured; the worst of you is he from whom nothing good is expected and one is not safe from his evil." [Tirmidhi, Sahih]
15. "The best thing mankind has been given is excellent character." [Hakim, Sahih]
16. "The best of journeys undertaken are to this Mosque of mine and the Ancient House." [Ahmad, Sahih]
17. "The best of which man can leave behind for himself are three: a righteous child who supplicates for him, an ongoing charity whose reward continues to reach him and knowledge which others benefit from after him." [Ibn Hibban, Hasan]
18. "The best of the world's women are four: Maryam bint 'Imran, Khadijah bint Khuwaylid, Fatimah bint Muhammad and Asiyah the wife of Fir'awn." [Ahmad, Sahih]
19. "The best day on which the Sun has risen is Friday; on it Adam was created, on it Adam was made to enter Paradise and on it he was expelled. The Hour will not be established except on Friday." [Muslim]
20. "The most beloved of deeds according to Allah are the continuous ones, even if they are little." [Agreed upon]
21. "The most beloved of deeds according to Allah are the prayer in its right time, then to treat the parents in an excellent manner, and then Jihad in the path of Allah." [Agreed upon]
22. "The most beloved of deeds according to Allah is that you die and yet your tongue is still moist from the remembrance of Allah." [Ibn Hibban, Hasan]
23. "The most beloved words according to Allah the Most High are four: Subhanallah, Alhamdulillah, La ilaha illallah and Allahu Akbar; there is no problem with which one you start with." [Muslim]
24. "The most beloved of speech according to Allah is when the servant says, 'Subhanallahi wa bihamdihi' [How Transcendent is Allah and we praise him!]." [Muslim]
25. "The most beloved of speech according to Allah the Most High is that which Allah chose for his Angels: Subhana Rabbi wa bihamdihi, Subhana Rabbi wa bihamdihi, Subhana Rabbi wa bihamdihi." [Tirmidhi, Sahih]
26. "The most beloved of people according to Allah is he who brings most benefit, and the most beloved of deeds according to Allah the Mighty, the Magnificent, is that you bring happiness to a fellow Muslim, or relieve him of distress, or pay off his debt or stave away hunger from him. It is more beloved to me that I walk with my brother Muslim in his time of need than I stay secluded in the mosque for a month. Whoever holds back his anger, Allah will cover his faults and whoever suppresses his fury while being able to execute it, Allah will fill his heart with satisfaction on the Day of Standing. Whoever walks with his brother Muslim in need until he establishes that for him, Allah will establish his feet firmly on the day when all feet shall slip. Indeed, bad character ruins deeds just as vinegar ruins honey." [Tabarani, Hasan]
27. "The best of your leaders are those that you love and they love you, you supplicate for them and they supplicate for you. The worst of your leaders are those that you hate and they hate you, you curse them and they curse you." [Muslim]
28. "The best of you are those who are best in paying off their debts." [Tahawi, Sahih]
29. "The best of you are those with the longest lives and most excellent character." [Bazzar, Sahih]
30. "The best of you are those with the longest lives and best in action." [Hakim, Sahih]
31. "The best of you are those with the softest shoulders during prayer." [Bayhaqi, Hasan]
32. "The best of you are those who are best to their wives." [Tirmidhi, Sahih]
33. "The best of you are those who are best to their families." [Tabarani, Sahih]
34. "The best of companions according to Allah are those who are best to their companion and the best of neighbours according to Allah are those that are best to their neighbour." [Tirmidhi, Sahih]