There's a lot more hacks for Sonic than just Shadow. There aren't even as many Shadow hacks as you all whine and moan that there are.
You just never pay attention to any of them.
Sorry for making a joke
I'm just saying, because Shadow is one of (if not, the) most downloaded hack ever. Which is kinda sad, because as much of a Sonic fan I am a Nintendo fan, Shadow... imo, I don't like him.
From what I've seen (SEEN, keep in mind), most Sonic hacks are Shadow, (possibly) Metal Sonic, or Super Sonic/Shadow (possibly in that order, maybe switch Metal with Super).
Anyway, I too agree that there's too many awesome Marths and Zeldas that won't fit in my character slots Dx