Custom Made Sword really better, than Polished Sword. Superior Sword have lvl 5 Crafting Effect & can be more effective, than Custom Made Sword.
Thats the note at the bottom of the table. I don't know. Doesn't make sense. Perhaps the guide is wrong or is missing some other stat that makes the level 5 sword better. I highly doubt that a lvl 3 sword is better than a lvl 5. That wouldn't make sense from a design standpoint. Someone should test this out. I can't now as my moose edit is broken awaiting a fix. Also, if you do test be aware that character level influences stats on crafted weapons.