I know that they are strong, it's just that their punch attack takes ages to charge up, the kick is easily avoided, the up B attack leaves you vulnerable and the side B attack gives them a perfect shot from above (this is for C.Falcon and Ganondorf). Bowser and Ice Climbers are pretty good characters, even though they are heavy. I'm mainly good with characters that are fast and/or small. They lend themselves to a variety of strategies that don't leave them vulnerable for long/at all.