Spear Lanns definitely needs some touch-ups. He doesn't have a lot to work with (heck he even doesn't have Raging Fever) and its not fun to keep relying on just two Spear-exclusive skills (one smash enhancement and one buff) while Swords have seven exclusive skills (two smash enhancements, two extra skills, two dodge enhancements, and one SP). Also, Spear's survivability is extremely crappy, while Evies and Vellas who are almost or equally as powerful as Spears can just live through almost anything.
What I would like to see is Spears getting better survivability, their own SP 250 ability, and something better than spin2win.
I disagree. Most of Sword Lann's skills pre-Revolution are useless because of how good Pummel Storm and Double Crescent (damage-wise) are. Raging (or Radical) Fever is still useless. In comparison, nearly all of Spear Lann's attacks can serve him the ability to Glide because of Fury Infusion.
Spear Lann's survivability may be the worst among all playstyles, but it's plenty adequate. And Twin Sword Vella is nowhere close to Spear Lann's damage potential (Scythe is, but Scythe is just stupid powerful). Btw, when you're referring to "spin2win", are you specifically meaning Hurricane? Or Moon Splitter and Hurricane?