In my opinion, there are easy characters to play, but no character is so easy that you can get by with crap fundamentals. I main Ness, for example, and I won't hesitate to tell you that Ness is an extremely easy character to pick up and play. He has one of the best combo throws in his down throw, easy to do combos in FAir into FAir strings, and the best kill throw in the game in his back throw which basically guarantees death if you get grabbed over 100%. However, none of that matters if your fundamentals are awful. Ness' ease of use can't save you from your own weaknesses. If you plan on approaching every single time with a dash grab, it may work the first time but, if you're playing against a competent opponent, they're going to pick up on it, avoid it, and punish you. If the only method of damage racking is down throw into 2-3 FAirs, your opponent is going to learn to adapt, DI, and punish you for it. If you're blatant and obvious about when you're planning to grab an opponent for the kill, you're going to get baited and punished. Not to mention Ness' lackluster recovery, which even good Ness players struggle getting around. Ness may be easy to play, but you still have to have good fundamentals to do well with him.
A lot of these "easy to use" characters rely heavily on their players having good fundamentals. Anybody can sit in the corner and charge Limit with Cloud. The difference is that a player with good fundamentals knows how to respond when a good player attempts to retaliate whereas a player with crap fundamentals is just gonna get grabbed and thrown off the stage, where they'll die at 12%.
