Thanks to make your thoughts SacretPath

I personal find Posion Weapon and Splitting Arrows NOT useless (with a Warrior type) !
And especially if you first poison you bow(s), then take Splitting Arrows as your active skill and fire arrows (poisoned!) to a group (or just one!) enemies, it's a great thing!! Even a Giant Orc going fast death and lower Orcs very fast!! After 2 or 4 shots with this combine of the two skills all Orcs are death

!
But most of my bows have already a good damage value! My bow with the highest damage value has 148 damage (max) !
I do many many tradings, so I spend much time in trading to find the best equipment items and weapons. Patient is worth that time !
But I use also a melee weapon (Sword or Axe or Dagger - depending on which kind of enemy I must kill) and have some great melee weapons! For example a Sword that do Poison damage + Frost damage + more (lightning or fire, etc ... ) !
About "loot" : I don't know about any "difference" between HOW you kill an enemy and the difference between the "loot frequency" ...
I was always thinking it's just a "roll of a dice" (randomly) and so you're a "unlucky or lucky hero" to find low or great loot /// less or more loot !
Question I think about is now :
And what about killing an enemy using a Skill like Frost, but with a melee weapon that have Frost? Or a melee weapon that have Lightning or Fire ...? Is this kill a magical(?) or just a melee killing blow?