Lol you all have funny responses as to why you dislike someone. I doubt any of you have ever played professionally and surely none of you have ever had some big prize money on the line otherwise all of your reasons would be moot. As for the arrogance and loud cho's I don't see any problem with it. Most of them are arrogant on the court because it's a good thing. You want to be confident in your shots and you want to make sure you can get inside your opponents head so that you can win the match. It's all very logical. As for showing too much emotion I doubt you'd say any of these things in any of the other sports you watch. When someone wins a title or shoots a winning goal/point you guys have no problem with them running around the court or screaming then why should this be any different?
As for RSM, that was luck of the draw in 2004. Wang Hao had a great game against his fellow Chinese because frankly he knows how to beat them. And RSM beat Timo for the first time in months because of his Timo's back injury. WLQ or Ma Lin would have beaten RSM in the finals because they're way more aggressive than WH was at that time. It took the Chinese a while before they learned how to beat RSM. By the 2008 Olympics he was pretty easy to beat because they made people like WJJ play like him and they learned how to defeat his style. He's not lazy at all, he simply has an outdated style. Everyone knows how to beat him now because everyone has seen his style from the Olympics and past tournaments. Not to mention that his status as number one in Korea had dropped down significantly since the Olympics it's no wonder he loses to a lot of people.
As far as edge balls and what not, I doubt you'd know the common courtesy in tournaments. Typically you don't argue with the ref unless it would be your point. The opponent basically isn't supposed to argue with the ref for two reasons. They may not have seen whether the ball went up or down, or they simply would be biased regardless of the actual result. Either way you look at it the person who has been granted the point should rarely argue with the ref because no matter what you do you'd look to be at fault. If you give the point away the match becomes psychological and your sponsors/coaches are angry at you; if you argue that your opponent is correct the ref will just yellow card both of you. So either way you lose both financially and psychologically.
As for my personal least favorite player, I'd say Waldner. Only in his playing style. I don't like people who are all about the point. Waldner rarely every out aggressed his opponent as you can see from his signature drop shot. I liked WLQ and MLong for refusing to drop shot and just smash your way to victory. I also hate that people consider him the best player ever. They compare him to everyone of today, but what they don't realize is that a lot of players are better at the sport because of him. So to compare him to them is a bit unfair because he played a completely different game. 21 point system, hidden service, 38 mm ball, speed glue era, same colored rubber on both sides. It's like comparing Babe Ruth to today's players when our technology is so completely different from 80 years ago. TT would be the same. To compare carbon blades with Tenergy or the rubbers of today to the rubbers and blades of yesterday is like comparing a car from 1990 to now in 2011 it's just not the same.