Finished this yesterday. Not much to add that hasn't already been said but this show was great! Although I will say the creepiness of Syril and Dedra is gross.
Regarding the big 3 speeches, I personally put them in the following order
Marva
Kina
Luthen
I also wanted to give an honorable mention to Nemik's voiceover that Casian is listening to.
Not to say any of them are bad at all, they are all great (it's like ranking LoTR for me)
All goosebump inducing. I'd go
1a. Marva
1b. Luthen
3. Kino