Verified answer

No, it is not a word. You have to state, “Which is more fun, basketball or football?”

No it’s not

it is not a universally accepted word but people use it. More and most fun are the recommended comparative and superlative forms. I don't know how anyone can claim that fun is not used as an adjective. That sure was a fun time, a fun dance, a fun ride, although I think the dance was the most fun of the three.

No. The word "fun" is really a noun, and has only recently been taken over as an adjective.

https://www.wordnik.com/words/funner

English is an entirely democratic language - it belongs to all of the people, lock-stock & barrell.

Whilt the word 'funner' is accepted in speech, it's not used in the printed/written version of English. That's to say, not yet. Keep going and it soon will be.

While the use of fun as an attributive adjective (a fun time) is common to hear in informal speech, the comparative and superlative forms funner and funnest, as if fun were a standard adjective, is another matter altogether. ... These types of nonstandard words are usually only found in speech and not in edited prose.

We all know what you mean, but it isn't the correct way to say it in English, same as if you said 'ain't you got none?'. 'More fun' is correct.

no. "more fun" is the term

Fun is a noun, not an adjective. You compare adjectives by adding -er- nicer, smaller, happier, etc. You compare nouns with "more"- more fun, more people, more water.

No, "funner" is not a word.