Who, in your minds, are the best/most powerful characters from each of the following settings that you think Geralt of Rivia can beat? Give an answer for each of the proposed settings if able (skip any you don't know):
Dungeons and Dragons
World of Warcraft
Lord of the Rings (includes movie versions of characters, First and Second Age characters, and video game characters like Talion)
Malazan Book of the Fallen
To clarify, this is video game Geralt, which is supposed to be him at his best. Has access to all of his signs plus usual equipment.
Name your characters!