This is something I've sorta been pondering for a while. On the one hand, Spear Fighters and Spear Masters, like Tellius Soldiers and Halberdiers, are balanced, Lance-using footsoldiers associated with the militaries of their home countries. However, Spear Fighter also has some skills which are associated with it that the Tellius Soldier line does not have, although skills work very differently in 3DSFE compared to Jugdral/Tellius, so I wouldn't really consider the skills each 3DSFE class learns to be quite equivalent to having them as built-in "class skills" in a Jugdral/Tellius-style setup. Also worth considering is that the option for Spear Fighters to promote into a mixed physical/magical class in Basara would almost certainly not be mirrored in a theoretical second promotion option for Tellius Soldiers.
What are everybody's thoughts on this? I'm having trouble coming to a conclusion, myself.