The seemingly little differences in some English words, especially when it comes to spellings, are a result of the differences in the way some English words are being written and spoken in different countries, places, etc. British and American English is the most used English in the world. And there are some differences in the way some words are spelled both in British and American English. That's why you will see some words with the same meaning but a little difference in their spellings.
The same explanation is what goes for these two words; favorite and favorite. In American English, there is the omission of the letter 'u,' and that is why, out of the two spellings, a favorite is the right spelling in American English. The same thing is applicable to British English; the second spelling (favorite) with the letter 'u' is the right spelling. Other examples are; odor and odor, color, and color.
Favorite and favourite are two different spellings of the same word. The definition of the word itself refers to something which is preferred, above all others. Favorite may be used in all the same contexts as favorite, and both spellings of the word possess the same meaning. The word “favorite” is how Americans spell the word. The British, on the other hand, spell the word as “favourite.”
Since the lion’s share of the English-speaking world is using American English, “favourite” is employed primarily by the British, Canadians, Australians, and other countries which have been under British rule. Spelling variations are a result of different standardization at the editorial level.
The most widely used language on the planet is the English language. This language, if not the main language, is the second language of most countries. Its origin was brought by the Anglo-Saxons settlers from Germany to Great Britain in the 5th century. Throughout times, this language has been passed from country to country, and during the transit, some spelling of the words have been altered.
An example is the word favorite. You may have noticed that British people use favorite with u while Americans use favorite. The only difference is the additional letter u in the word. Many believe the word favorite is the correct spelling since British English is the original and older than the American English language.
There are some people who would rather use favorite instead of favourite because this is something that they are used to. If you normally use American English to write your literary works then favorite will be the spelling that you will use. You will use favourite when you want to use British English or if this is something that you are used to. It will depend on you and what you want.
Favorite or Favourite mean the same thing. This means that there is something that you like more than others. For example, you may say that your favorite/favourite ice cream flavor is Strawberry because this is the one that you like the best.