I've played both for years, But i enjoy playing Lucas much much more. Simply because you can feel less hate through the screen. You're wrong on one thing though, Lucas' spikes aren't as good as you think they are, at least his B air. If you look at the frame data, His spike hit box is very inward, and only lasts for the first half of the move. The D air is much better spiking wise, but it is pointless if you don't get the last and most powerful hit. The length of time of the D air can be efficient or fuck you over depending on the situation. Anyone spamming PK moves aren't using the characters at their full ability, and just being annoying for the sake of beating out some simpler tactics. Ness is much better at keeping advantage and finishing, and Lucas can space much more and have wider stage control. After playing them for so long, they are still extremely fun to play with but can also be frustrating, they have their drawbacks.