Easiest boss for you?

[Kilroy]

I would have to say Crazy Hand for me. He's so much easier than Master Hand >_>

Either that or Tabuu, truly. He's extremely predictable, and if you can avoid his OHKO moves, you're fine.

[Ridley]

Petey Piranah. Just jump with yoshi and ground pound down. Just do that over and over.

[Kilroy]

Petey Piranah. Just jump with yoshi and ground pound down. Just do that over and over.

Petey's a tad annoying for me. I have an urge to kill both cages at the same time, but Nintendo was smart and made it so that one cage has slightly more health than the other :P

[Triforce_Luigi]

Master Hand. His attacks are predictable and often leave him open for attack.

[SkyMyl]

For me, it's Master Hand. Tabuu is easy depending on the character and difficulty.

[Water ☮]

Rayquaza barely even touches me!

[Triforceman22]

Crazy hand.

Three Link down air's and he's dead... :P

[Magnum]

After 3 generations, Master hand is still easy.

[JrDude]

All of them, except on certain difficulties (Very Hard +)

[Apollo]

id say the hands are by far the easiest
i always go untouched when fighting them

[Shaleblade]

I agree on Crazy Hand.

[Shujinco2]

Either Porkey or Petey.

[Lotos]

Petey Piranah. Just jump with yoshi and ground pound down. Just do that over and over.

You ever think to do that tapping A + down while in mid-air?  It's great for all the other bosses as well.

The hands and Petey are the ones that I can get through untouched.

[Macawmoses]

Galleom. Even on Intense, his moveset is  very predictable, and strong air game will destroy him faster than you can say "locked", he may be a tank, but he is the easiest boss in the game.

[WiinolikePS3]

Galleom. Even on Intense, his moveset is  very predictable, and strong air game will destroy him faster than you can say "locked", he may be a tank, but he is the easiest boss in the game.

Yes, I don't see what's so "tough" about him.

I killed him with Pikachu with no damage. On Intense, SSE.