I second Jigglypuff mainly with a tad bit of Bowser here and there, mainly because they were my main and secondary, respectively, in Melee. Jigglypuff doesn't get chaingrabbed, which I find helpful against tough PT matchups like Kirby. On the downside, Jigglypuff is light and fairly predictable compared to PT, so I have to be extra careful when using him. Bowser, on the other hand, I use when I want to be more defensive. He gets chaingrabbed, yes, but depending on the opponent's playstyle, I use Bowser due to his being difficult to kill. Whirling Fortress is great for defense, and depending on the counterpick stage, Bowser's Koopa Hopping can be great for mindgames. I'm finding that I'm using Bowser less and less, though, despite his being a higher tier than both PT and Jigglypuff.