I think the DualSense is going to be end up being the biggest differentiator for a lot of people.
Yeah, it's probably the game changer for me after using it, just an amazing piece of technology. If a game doesn't implement it I might opt for the Series X version or if the performance is vastly better but I have a feeling that won't happen often. Of course this is the start of the gen so who knows. I just hope devs continue to implement the DS because it's so good.