KidSnide
Adventurer
If there was a feat that allowed you to have an reached threat area that would allow attacks of opportunity then it would be more beneficial for fighters to use reached weapons. Without the extended threat area reached weapons are most usefull for back tier characters.
I think this is right. I don't think polearms are a disfavored fighter build per se, I just don't think we have the rules that effectively enable it yet. A polearm fighter needs slightly better reach OA abilities and some powers that take advantage of the longer range. Whether these are feats, changes to the class abilities or new powers, it's hard to say.
I've heard that two-weapon fighters are a build that is enabled in the martial power splat book. Maybe the book will enable polearm fighters too?
-KS