Help me choose: Canyon Aeroad 2020 vs Cannondale Supersix EVO 2023

Which of these two bikes is the better deal?

I’m considering two options:

Canyon Aeroad CF SL (2020) – comes with carbon wheels, being sold privately for €1600 (no warranty).

Cannondale Supersix EVO Carbon Disc (2023) – refurbished ex-rental from a shop, priced at €1900, and it includes a 1‑year warranty.

Which one would you say is the better offer?