things to keep in mind:

• hussie is a stone-cold killer; todd howard insists on making his darlings Essential, therefore he may be similarly reluctant to go all-out when fighting you
• because of todd howard’s clipping issues and poorly-balanced stealth mechanics, his attack patterns and movements are a lot less predictable; hussie will actively telegraph half his attacks, and will spend enough time celebrating each genuinely unexpected one that you can easily regain your footing

• Hussie has nothing to lose, Todd has everything to lose 

• Hussie’s inventory system is also very glitchy, and the glitch may extend to Todd. As a result, Todd’s weapons can become perfectly mundane objects at any time. Have you ever tried to cut someone with lipstick? It doesn’t work.
• Todd has access to console commands, which in desperation he could use to achieve godmode.
• Hussie has killed gods, and will again.