which weapon stat is better?

Which is better? damage wise.
a.) element, attack 10%
b.) element, element against 20%
c) attack 10%, element against 20%

 

Element. But unless you are insanely rich (Or common mage) You will be going for ATK% and full crit.
Having 2sloted and stated elemental armor like these youtubers would be great. But not even selling your soul will give enuff spinas xD

 

B is the higher damage, because ATK10% only increase about 300-400 ATK but Ele20% increase much damage especially EnemyDef is low.

 

imo, elemental stats will be a thing when 5th anniv weapons are available until 6th anniv. People will rarely change their weapons after 5th anniv from now on as to how common stat on 210 cap stat works right now. I don't mind having 1S elemental weapon tho since it deals more damage than a 2S non element common stat

 

if an all around? specially on fairly high defense bosses.

 

Normally ATK% is better on Higher def boss because if your ATK is less than BossDef, damage will be 1 and with +100% Element/CD your damage still is 2 only.

But please notes that unless is NM/Ulti mode high level Boss or special event boss, is rarely they have Def over your ATK thus element&element+% is better than Ele& ATK+% unless your BaseATK is really less, but in this situation PP is better than ATK+%.

 

B is the best.
Can use cd stats or atk10% with it. For example ele, dte20%,atk10%, cr20/cd20.
I usually go with cd stats on weapons since so many xtals are already giving atk%, well maybe katana atk10% might be better.

On weapons like bows and dualsword that can use an element as a sub or an enchant sword build then something like dte20%,atk10%,cd20, cr20, cd4% would be a decent stat if you want to go elemental.

 

how expensive will these weps be?

 

at 5th anniv, 1S +S might be at 7m-10m due to high demand and anti deg increase prices but after few months when the event is over, it might drop to 5m-6m. Summer event is also close so statting elemental stats will be common and easy due to abundance of mana.