I agree that Singed is a legit hero and is by no means crappy, but compared to the other tanks out there right now, he doesn't have the utility of say an Amumu or an Alistar. I've been keeping track of the tournament Reginaid is hosting and I don't recall seeing a single Singed in there. Same with the Baron Nashor cup a while back during the summer. If Singed really is as solid as most people say, shouldn't he be picked more? I almost never see a Singed in games (unless I'm playing him cuz Toss is one of the funner moves in game).
The reason I brought up a change to his throw was twofold. 1) It makes him more versatile in terms of harassing in lane with it (throw creep at enemy), positioning enemies and allies as well. 2) It just seems more fun.
Anyways, the points that others make in the thread are really great as well especially some of the more likely changes such as larger gas radius and fling radius. I would love to at least see those make it in.