Which is more important - the style or the story?

So I have been reading a ton of those free books on Kindle.  Some are really good stories, but the grammatical errors or typos are kinda annoying.  And then I have read some very nicely edited books (that did cost a lot too) but not with a great storyline.  

According to me, both are equally important but then again perfect language and story is a very rare case, is it not? If the story line gets my attention but the grammar and language is not upto the mark, it is quiet irritating. But I'd go with bad story line. I mean I can survive bad english, because honestly I have read a lot of fan fictions and very rarely does the writing style reach the mark, but if the story is good I am fine with it. But if the story line is illogical it completely frustrates me. I can do with bad english (as long it is readable and not difficult to understand) but I can not do with stupid and illogical story line. 

If the writing is bad, then it means the author really needs to work on their grammars, writing skills. Its possible they have a real good imagination and creativity about how to take the story.

If its a bad storyline then it means, the author is on the wrong ideas. They are not creative enough or do not have the innovativeness in them for that particular genre. But they can try to be innovative.

So if I had to choose between a writer who can imrpove their skills in their future or a writer who needs to go different with the story, The former can be achieved while latter can be difficult. The latter may lead to repeatative storylines. But I prefer them because if the writing goes bad, you fail to enjoy the story. So you eventually end up not liking the story. I dont mind the story being less attractive as long as its well written. I can admire atleast the style.

I would however thinks thrice or more before I choose the same author with the good style. I think the synopsis provided will be of help there. In case of bad writers, I will give them some time, skip a few books and then later try if its improved or not.