I voted TotK, I'm a bit burned on the Souls formula and Elden Ring didn't change it enough for me. Besides, to me Souls' greatest strength is it's combat and IMHO it peaked with Sekiro. I enjoyed Elden Ring a lot, but I would preffer if the next Souls game was Sekiro-2 or something with that structure: Smaller, more linear, but with a much highly tuned combat system.
I only got into the hype for TotK a couple of weeks before release, but it has surpassed my expectations by far. The Fuse+UltraHand+Huge open world combo, covered with a thousand layers of Nintendo polish is a huge accomplishment that I don´t think any other dev in the industry can come close to.