Speaking of Sheik -
every time I played Link (main) vs an opp sheik, I used to lose often even if it was a n00b smash spammer. But I found one basic way around it. Run away and spam projectiles!!!
In my opinion, Sheik is somewhat cheap as he doesnt require much thinking out with moves only one move after the next is needed. Other problem is that she is almost entirely a close range fighter and so her moves use her body to attack. No disjointed hitboxes or projectiles. Only projectiles are needles. The chain is kind of an exception but no one really uses it in battles.
Trickz - Ken manages to recover from a rest move?!?!? WTF that's like one of the hardest moves to recover from unless u CC or DI downwards to the ground
On another matter I'm still practising with Marth and Falco so I can have an easier time beating against Sheik / Fox players.