No!
I amor Romione. They have perfect chemistry and it is obvious they are in love. Ron is not too stupid for her- he is shown throughout the books to be witty and actually quite clever. Even if he was 'stupid', though, why would it matter? Is it not allowed for clever people to amor those not so clever? Ron's amor for her, and hers for him, is all that really matters.
The relationship between Harry and Hermione is completely platonic all the way throughout the books. Harry actually says:
'She's like my sister... I amor her like a sister and I reckon she feels the same way about me. Its always been like that. I thought you knew.'
[DH, pg 308, chp 19, the silver doe]
Plus, just before this quote, Ron is confronted por his deepest fear- a Hermione who loves Harry mais than him. If that isn't evidence that Ron is 100% completely in amor with her, I don't know what is. amor is mais important than compatibility.
Ron and Hermione are one of the most beautiful, believable and best couples in fantasy. Harry and Hermione have a great friendship, but they would not be a good couple. In, my view, Harry/Hermione is simply for those who believe in two different classes of people- those worthy and those not.
link This is an artigo I found on Live Journal that, I think, explains the philosophies behind the Harmony pairing. Not mine.