Ike's Final Smash is pretty hard to escape unscathed...
But seriously, Kirby has such a weak final smash, its so easy to avoid. In the next game they definitely need to balance out the final smashes better.
My least favorite character to fight is either Ike or Pit. They're just so damn annoying.
Another thing that really pisses me off is when you're on a landmaster trying to escape and that person makes it fly up into the air so it kills you before you can jump off.
And when people shoot the ray blaster non-stop until you're off the screen and killed. That just fills me with rage.
I've come pretty close to physically losing my temper.