Just because you've reminded me, I went out of my way to find the formula.
Assuming you are at the monster's level, your percentage hit rate is 100 - (sqrt(mobavoid)-sqrt(playeraccuracy))
This hit rate cannot exceed 100%, and a negative value indicates a 0% hit rate.
For every level you are under the monster's level, subtract 5% from the above calculated hit rate.
Therfore, if you wanted to 100% hit Oblivion Guardian (
http://global.hidden-street.net/sear...ion%20Guardian), you would need 225 accuracy and be level 164. Which would require some form of extra accuracy/dex (although, it doesn't mean accuracy is hard to come by). That's the highest amount of accuracy needed unless you plan on fighting Pink Bean, which requires 625 accuracy.
Swords are more readily available, and tend to have a faster speed than Blunt Weapons (Fast 5 as opposed to Normal 6). Swords are also more readily available, with well scrolled swords much much easier to find. But, they tend to be more expensive.
Blunt weapons are cheaper, slower, and easier to mass scroll. However, that does not mean that they are cheaper in general. Unless you are seriously lucky, it would probably cost more to scroll a BW powerful enough to out-damage it's sword counterpart than to just buy the sword in the first place.
1h weapons allow an extra theoretical 3 lines of potential, and can (with enough funding) out-damage a 2h weapon over time. However, the cost of using such a powerful 1h sword and shield is not recommended
as a WK until you get Shield Mastery and/or Divine Shield. Thus, it's much more efficient to just use a 2h weapon until about level 100, when most WK's tend to start putting points into Shield Mastery. Damage wise, you would be weaker, but the shield (even with only 3% str) will allow you to take advantage of early tanking abilites, which is the whole point of Shield Mastery.