Have you played both polearm and two hand class? Probably not, you probably got killed by a two hander and now you're mad. I played both you just gotta adjust the playstyle. Instead of qq'ing about how the stab outreaches yours block it and get in close then attack.
I use the polearm right swing to wrap around teammates for killsteals all the time, its excellent once you get used to it, and is the ultimate "backpedal and spam" animation. Even the left swing isn't too bad, especially with the last patch. I find myself hilt slashing way more naturally with polearms, and that thrust can be killer when used in facehug range without having to fuck with the mouse too much (unless a pike)
I mainly play a two hander, anyways. But gimme a Long Bardiche and some polearm WPF and I'm killing just as much, if not better than most of my two handers. Especially that reach, balanced, high cut, shield bust, horse rear. Delicious stats. And the versatility of hoplites or long spears is unmatched by any two-handed class. Polearm hoplite stab is just as good as a two-handed sword stab, almost as much bonus reach, more damage, a shield.
All fun (and pretty balanced!) classes.
