Even with the improved 2h bonus, a 40 delay 2hander at L49 gets 13dmg bonus which adds 0.325 to the ratio. This is only slightly more than 9 damage bonus gives for a 28 delay 1hander (0.321) and less than for a 27 delay 1hander (0.333) at L49.
Damage bonuses for 2handers give big numbers, but big numbers don't guarantee better actual damage over time.
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