Due to the rules update on charging, said feat is redundant. You can charge adjacent with a polearm anyway.And yet another one (name I can't remember) that lets you charge adjacent with a polearm.
Heroic:
There's another one (name I can't remember) that lets you flank from reach with a polearm.
p.s. Draco is right, If you are playing a pre-essentials fighter, polearm gamble + hbo is highly frustrating for your opposition. However, If you are going to go polearm gamble, also consider Uncanny dodge (even though you grant combat advantage, disables the +2 bonus everyone gets to hit you)
Actually a Dragonborn with Draconic Arrogance can do quite a lot of damage with Polearm Momentum (the stat array is ugly though). Greatspear Barbarians are pretty common as well (particularly with the 1/2/3 untyped bonus to charge damage that Spears gets now)Your two powers would be something to continue this gameplan. Polearms are about control; if you wanted to do the best damage you'd not be going for a reach weapon.