Threads like this are stupid. If you believe that shielders are OP, you are also dumb.
Overall the classes have been pretty well balanced for a while. Sure there needs to be some tweaking here and there, (mostly with sweetspots) but they're pretty good overall.
I consider 2h the middle-of-the-road class. It's good at everything, but not great at anything. It has good animations, good speed, good length, good damage...etc. It's also the reason why I find 2h boring as fuck, but that's just me.
Polearms have the best utility weapons and the best support weapons. Polearms are on the slower end, but most have pretty good length and overall they have really good damage. They do have the worst animations overall in my opinion though.
1h has the worst damage, the worst length, the fastest weapons, perfect blocking from the front, ranged defense and the second best animations in the game. I say second best as 1h animations are very situational. Each animation is fantastic in certain situations, and shitty in other situations.
So looking it the classes as a whole, 2h is the middle of the road class and both poles and 1-handers are min-maxed to a degree. They're great in some situations, not so great at others.
This whole conversation is stupid anyway, since it mostly comes down to the individual players. This mod would be so much better if all this e-peen class bullshit stopped coming up all the time...