On the flip side, he's a brilliant strategist. This doesn't come into play nearly as much as it should, but if Ron's being faced with a "game" scenario--- chess, mostly, and sometimes Quidditch-- he performs and thinks brilliantly. In a lot of ways it's because he has the time to think things through and see what his opponent is doing, where as academically and on the battlefield he doesn't get that chance. Ron's actually capable of beating even Hermione when he's fully in the mode of playing chess, which helps to prove his strategic nature can out do her logical sometimes.
 
Ron's a wisecracker, there's no two ways about it. Growing up around Fred and George has had quite the impact on him. His sense of humor can often get the people around him laughing, but on the same note it's also often insensitive.  Ron doesn't really notice his jokes are insensitive, however, and often shrugs it off until he actually makes someone cry. This is mostly because he really is emotionally immature, but on the same idea it's likely because he keeps so much emotion in that he thinks other people should be just as capable. However, as unintentional it may be, his jokes really are hurtful and at other peoples expenses.