Robo, I could beat you with your best character using Jigglypuff and not pressing the A button the entire time. I know everything.
And Sheik isn't as good as Zelda. Sheik's offense is really low, she has a lot of attacks and is really fast but her attacks don't do much damage, plus she's tied for the worst throw move with Marth and Roy.
Saying you're better with Marth than Roy is stupid. All of the clones in the game only differ in strength and speed. Marth is faster than Roy, but he's a lot weaker. And the speed difference isn't even that great, cause Roy is still fast as hell.