Truth is, I often get more kills with a longspear and 1 polearm WPF than my greatsword with full WPF, and it takes much less effort. You have a 245 reach long spear to keep you out of harms way, and add some pike wiggle to confuse your enemies...
A pike can turn anyone into a killing machine. Yes, pikes may be supposed to be the ultimate support weapon, however I think it could use a speed and damage nerf and still be extremely useful. This to prevent stunlocks and far too many one- and two hits I get with the pike.
Acutally, it's rather the long spear I mostly have a problem with. The regular pike isn't as effective simply due to its slower speed, which reduces its damage "over time" and also prevent stun locks to an acceptable point.
Edit: Meh, I don't really care if they get nerfed or not, I like pikes because they add another dimension into melee fights, and I wouldn't want them nerfed into oblvion... Just posting my honest opinion.