And he doesn't look like Rupert Grint. I had wished that they had cast Domhnall Gleeson (I said that before he got famous), but he would have been too old, and really almost anyone else would have been better, Grint is decidedly unattractive. Ron may not have been handsome like Bill, but that does not mean he had to be ugly.
Harry and Ron both have the genetic capacity (just like Hermione) to be brilliant. They were a rather lazy, but they were just as smart, if not smarter than Hermione. Their OWL grades were lower than hers but barely (and for Harry one was higher), and she spent more time studying. Intelligence is brain capacity not outcome
Anyway, back to ruining Ron. After watching the third movie one time, I consulted the book during the confrontation scene among the Marauders and the Trio, and discovered one of Ron's lines in the book was given to Hermione in the movie which made him look like a cowering idiot.
Another let's-make-Ron-look-like-an-oaf was his little response to the cruel taunting of the Horocrux. People, in the book, he was CRYING. He loved Hermione and because of his insecurities, he was genuinely jealous of Harry.
Which love brings us to the biggest movie crime. Because Ron loved Hermione he was emotionally tortured (as was Harry, he cared too) while she was physically tortured. Ron was not a calm person, panic was usually his default. Does emptily staring as he did in the movie really match his personality? I mean Harry was pretty upset too; what decent person would be thrilled hearing anyone, much less a friend, tortured? But for Ron, that was his beloved. I am still stunned by the insensitivity of that scene in the movie.
Thankfully, someone appreciated the incongruity of the book and movie parallel.
Isn't the "real" Ron just precious in that scene? So much shipping of this couple.
Calling all Ron Weasley appreciators.
For the record, I would marry Fred or George Weasley, sorry, I don't love Ron that much; I like him and Hermione together.