I'd like for our decisions to actually change the course of the story, and maybe for us to be able to pick different Masters with their own personalities and compatibilities with different Servants instead of following the same generic flimsiest excuse for a character, but I realize those are necessary shortcomings of the format that can't really be helped. There's just so much you can pack in a game format like this.
Likewise, I'm torn between just wishing dead characters could just stay dead instead of being resummoned just as soon so death happening to anyone not named 'Roman' or a literal extra has an actual weight, and being thankful characters get second chances to show off what they can do and what can be told regarding them after being wasted off.
Come to think about it, maybe what I'd like is for this to be another kind of game altogether, even if following more or less the same plot and using the same characters.