Something I'm sure that's come up before but I don't have much experience with is the difference between one handed builds (dual wielders, sword and shield) VS two handed builds (bows, staves and two-handed melee weapons). As far as I know they're mostly meant to be the same, with different bonuses and abilities down the different weapon lines. But a rather glaring difference I noticed as a staff user is that because my weapon takes up both weapon slots, I can't use as many set pieces as I can if I had two weapons.
One handed builds can use all 12 item slots (weapons/jewelry/armor) while two handed builds only get 11 item slots: this becomes more noticeable when you realize that with certain jewelry-inclusive sets, you can actually outright have two 5-peice bonuses as well as a Monster Set at active at the same time if you're one-handed, but can't do so if two-handed. Considering some 5 pieces are really good, isn't that a big power jump? At first I reasoned it as being "two-handed are ranged like staves/bows and the rest are melee", but aren't there two-handed melee weapons as well? Does that just mean going a two-handed melee weapon is just silly since you can get more item bonuses going dual-wield/shield?
This isn't the case for traits, oddly enough: one-handed weapons/shields only have half the trait power of a 2-handed weapon (IE 4% for one handed VS 8% for 2 handed) so the end result is the same level as power, whereas with item sets two-handed weapons only count for a single item in the set while dual-wielding the same item set counts both. I've seen calls for two-handed weapons to count twice as far as item sets as concerned to equalize them with dual-wielding, but I don't know how seriously those have been taken or much else.
So am I missing something, it seems pretty slanted towards one-handed...