Heres old list I have, its still pretty accurate. Pretty much the more reach, the slower the animation.
Weapon Reaches
1h
Overhead = +0
Left-to-right = +0
Right-to-left = +19
Thrust = +61
2h
Overhead = +15
Left-to-right = +17
Right-to-left = +13
Thrust = +80
2h Polearms
Overhead = -15
Left-to-right = -7
Right-to-left = -2
Thrust = +19
1h Polearms
Thrust = +50