Here we go again. Lucas has a tier 1 recovery. He gets back from everywhere. It's better than pit's (by far), of course worse than MK's, better than fox's, better than sooo many characters. You have to kill him by knocking him past a death zone.
Ness, by contrast, has a horrible recovery that restricts survivability past a critical point. His fair, uair, and nair cover his double jump well. After his jump's over, he's vulnerable. If he needs to use his PKT2, he's screwed. There are THREE ways to gimp Ness's PKT, and FIVE if you have projectiles. Let me list them for you.
1. Jump down, attack PKT (applies to lucas, prefered)
2. Jump down, get hit by PKT on purpose (does not apply to lucas)
3. Jump down, get hit by PKT2, survive (you have the benefit of being sent the ideal angle to survive this, and have the benefit of having a stage to tech off of. PKT2 hitting something halves the distance it travels. Very much NOT applicable to lucas)
4. (Projectilists) hit bolt with projectile (applicable to lucas)
5. (Projectilists) hit PKT2 with projectile (halves distance of PKT2, does not affect lucas).
One more not regarding PKT2 recovery: Lucas can recover from farther away. This makes it impossible for many characters to go offstage to attack his bolt, and the tighter circle it weaves makes it more difficult to do so anyway. Factor in Zap jumping to avoid edgeguarding (which is amazing) and the option of tethering if you're closeish, and you have a clear winner in recovery.
In terms of "combos", Ness excells. However, they are escapable in most circumstances. His robust aerial priority is a great asset for him as well. Ness is above average when fighting and not recovering. In fact, his back-throw kills pretty much anyone at 130%. That's nuts.
On the other hand, lucas likes to sit back and PK fire things away with wavebouncing. It's a really safe, campy technique. Lucas has fast tilts that have disjointed hitboxes (with proper spacing have more priority than Ness's tilts), a better Fsmash, a Dsmash that's suited for a couple of tricks, spotdodge punishment, and early KOs, but a worse grab game. His aerials are lacking when compared to Ness, but they're still good. Fair links to ftilt to fair, and Nair to tilt is a staple of his game.
I say the ability to camp and recover >>> the ability to get gimped and inability to camp, even with a bit more aerial priority.
Edit: whoops, I forgot to even mention that lucas has TWO spikes that are both disjointed. Oh, and that his PKT is a ridiculous edgeguard on characters like Ike and Marth (stagespike ftw). Or that his double-jump is fast.
Edit 2: wOOt, argument won, my post count is 1337. I humbly accept your apology, Ness advocates.