I actually use my longsword as both 1h (with shield, sometimes a shield is necessary like in face of ranged and is handy on horseback), as a 2h (naturally) and as a polearm. The halfsworded longsword can be used as a spear with shield in which case it has quite adequate range (and penalty due to being used with shield, ofc, but the animation is different the 1h stab and unusual and has afaik longer range although is much much slower).
By 31 I'll have about 100ish wpf in all three cathegories, too. Halfsword mode is however very bad without shield due to very bad range. It's ok for greatswords.