2H-weapon style doesn't look efficient for 2 points in it. All you get is slightly improved critical chance and faster initiative.
Instead you are better of putting these 2 points into Dual-wielding style for access to dual-wielding.
If you place these 2 points into 2H-weapon style, you are becoming too specialized in 2H weapons and will have to use them all the time.
But instead you may place them 2 points in dual-wielding, and still choose 5 points in one 2H weapon (like either halberd or 2H swords), but you are not bound to use only them due to overspecialization, but later you can switch to dual-wielding flails or hammers (to compensate the lack of blunt damage from the halberd or 2H sword).
A possible distribution works like this
Two-handed Swords: 5 points (or Halberds instead)
Flails: 5 points (or Hammers instead)
Dual-wielding style: 2 points
And from here on only put 5 points in any single-handed weapon you wish