i have a masterwork long spear on BrunchLady, it is the best non-shield support pole arm since you can overhead and fight in 1 v 1 with it.
The pike is the best at support poking, but you can't 1 v 1. I have a deadly one on Cephalopopsicle (which has 10 Power strike! I break people.)
Awlpike is the best for poking with a shield since it just outranges lancer to stop their horse, and has the most poke damage with a shield. Hard to use 1v 1 with a shield, though. Good in 1v1 without the shield.
Long Awlpike is really good for a solo poking weapon. 32 pierce and nice range and speed.
English bill is the best at overheading, and is great in 1 v 1 too. absolutely amazing as a support weapon. Need to see more people use this beast.
The Swiss Halberd is it's counterpart. A bit faster, bonus to shield, nice cut overhead damage but it is shorter.
red tassle/warspear are pretty good fast spear&shield weapons. Good without a shield too since they can side swing. However, just a bit too short to be good for dehorsing. They can do the job, but it is a gamble.