When looking for a new weapon or when wondering if the new one you found is any good there are a few things that will determin value and usability.
There are different colors to weapons.
Green= Normal
Orange= Rare
Purple= Unique
now green are pud so dont ever waste time. Yes some come with high elemental etc dmg but the base damage to the weapon is horrible and usually sockets are few.
Orange can be ok but its the rare and I mean rare high + dmg /ele dmg with ton sockets youll see worth using.
Purple will be ur best to use in all cases. It comes with the highest % chance of 5-8 sockets. Has a high base XX-XX dmg.
Now on a weapon look for these things: Attack Accuracy%, Physical Attack
Physical Attack: while a good thing this is not relivent if the weapon has a high elemental attack, both a high elemental and this would be a great choice and more valuable.
Attack accuracy: the least of the 3 mods on a weapon but still usuful in not missing hits as often.
Sockets: I like to look for 5+ sockets but if a weapon has 4 and +6 elemental its still a great weapon , but 8 sockets and 6 elemental is a hurting weapon.
When you reforce a weapon each + adds +2 to low and top end dmg at +10 it would be a +20-+20 weapon.