Let's see. Ron saves Harry from drowning, fishes out the sword, destroys the locket, mimics Parseltongue to enter the Chamber of Secrets for the tooth so Hermione can destroy the cup, generally does well in battle including when separated from the others. He also learns how to treat witches well (the world needs a muggle version of THAT book!), learns to listen to Hermione and to support SPEW, earning what Rupert Grint hopes is the scene with the most retakes in the eventual movie. Ron came along great!
Yes, all that is true. However, Hermione is constantly performing miracles, from everything to her magic handbag to swelling Harry's face when the Snatchers found them.
I'm just saying that Rowling never let Ron shine with his magical abilities and instead used him as comic relief or moral support for Harry.
Bwahahaha!!!!