I would say that the games failed as time went on because they were trying to statically hang on to the concepts tat made sonic cool. Speed being the main one. At the birth of the 3D generation I think we can all imagine why that would become such a disaster. So much of that franchise tied itself to an old generation's conception of coolness. They stuck with it and died with it even when ti wasn't right for the mediums of future generations.

Answering both of your points... since you are going to hold both to your personal level opinion there is no point to discuss it.

That's cool, you disagree with what I put forward. 

I meant the last sentence before the bold. I think you are too sure of yourself when it comes to the meaning of facts, objectvism, etc. Yes, individual's can have different opinions on Mario and Sonic. But there still can be objectivity in the sum/total opinion of a group of people. In this case the "group" I'm talking about is a generational group, and how they perceived what was essentially hip at the time.

lol notice that he didn't address any of my comments

but anyway i find mario both bland and not fun so what does that mean?

It seems to me that you're not arguing that "fun" is more objective than "cool," but that what people view as fun changes far less frequently than what people view as cool. You mention that fun has a long lasting appeal, while what is cool and trendy now may not be so in the future. This seems less like an argument that fun is more rooted in objectivity than what is cool, and more that people's view of fun is far more consistent than what society views as cool.

I think you get that I'm not trying to make an argument. I'm just putting forth ideas to explain a common phemonenon in entertainment that is so often exemplified by Sonic Vs. Mario. I agree with everything you said. The phenomenon of Sonic and Mario is real and happens all the time.

To the rest of you, why does it happen? If all you can muster up is "everything is an opinion" "everything is subjective" than you fail to recognize that reality is not as finicky as you think it is. Maybe "fun" and "cool" aren't the best words, in fact there probably are no best words to describe the dichotomy I'm getting at. I'm just choosing the concepts are most encompassing as to what is consistent and what is more trendy.

@o_O.Q I didn't purposely ignore your comments. I think I answered them mostly through other back and forth's so far. If you don't find Mario fun that negates none of what I've put forth. Nothing I put forth relied upon a liking of franchises in question.

Since fun is objective, and you find Mario to be not fun, then we can define Mario as not fun, good we helped OP.