To dual wield or single wield? That is the question. Though two weapons are always cooler, alas, it is not always the best option. You can use this calculator to see your odds against a range of Armor Classes. Enter your attack bonus (level and strength modifiers) and each weapons' attack bonus to see how you fare against the world.
As a reminder, Halflings auto-hit and crit on any 16. This makes it so their lowest odds to hit is always 12.1%.
Attack Bonus (level and Str modifiers, if any):
Main weapon attack bonus: | Offhand weapon attack bonus: