Lucas.
He is just a really good character.
I mean, his fsmash comes out faster, and it reflects just like Ness', so it's both FASTER and has the SAME PROPERTIES as Ness'.
PKT goes through people, knocks away the smash ball, and can circle around bosses for multiple hits.
PKT2 is great for multiple people, plus, from what I have heard, it goes farther.
Lucas has the snake rope, so if you don't want to risk accidentally killing yourself with thundering the wrong way, you can grab the ledge.
Lucas has the PK Fire that is suitable for sudden death. (for me, at least)
Lucas has a very useful dair.
I was playing against a friend's Pikachu, and he got the slow watch, or whatever.
Then, right when he got it, I used down air.
It went something like this: CHU! Stomp. CHU! Stomp. CHU! Stomp. CHU! Stomp. CHU! He got me, then it ended.
But I was still alive.
His nair is great; you can set up so many other things with it.
His downsmash hits bosses three times.
His usmash is a killer.
His PSI Magnet reaches farther.
PK Freeze....Freezes...what else would it do, set you on PK Fire?!
His fair can be SHFF'd, and it makes for a good damage racker, I guess.
That's what I gathered from my main, Lucas.