sharpness, less hits to kill but still need to kill alot of stuff if you want specific items ((((level-1)*0.5)+1) lvl 1 is +1, lvl 2 is +1.5 lvl 5 is +3)

mending, not that useful imo if the item isnt atleast halfway to it being fully enchanted

unbreaking, whats the point of a long lasting sword if it doesnt and cant do anything else

sweeping, kills things at 75% damage of the initial direct hit, not as good without sharpness

smite, sharpness but for undead mobs only (level*2.5, 5 is +12.5)

arthropods, increased the damage to only cave/normal spiders and to silverfish and endermites and bees (level*2.5, 5 is +12.5)

fire aspect, causes 7 damage from fire ticks and drops cooked food for direct kills but passive mobs drop less without looting

knockback, good for creepers but if youre sprinting when you hit them and immediately back away or simply block line of sight theyll "calm" themself

looting, as said above less use outside of defense due to more item drops

vanishing, the item dies instantly when you die without keepinventory and does literally nothing with KI enabled so its worse than not enchanting the sword at all