Not a fan of Lann. I'm looking forwards to HAMMERS!
THIS! Lann's too hard to control IMO =( Hammers will be fun to mess around with =D I hear that they can crit on normal attacks @_@ Which sounds awesome... but I also hear that the damage on them sucks a lot because of the ridiculously slow speed in which they attack D:
And now for the on topic >_>
Swords get slip dash so they can abuse the invincibility frames and dodge better than the Spear Lann who gets to use Liberate to have high stamina regen, but with nothing more than the roll to dodge with.