Which of my 5 kids I love the most with a 6th on the way? I don't know man.
I like all of them. The Final Frontier was my favourite for a long time.
In the end, I'm just happy we are here with our favourite band releasing a record still able to compete with their best ones, excited as hell, even though they are late career. How many other classic bands is that true with? How many other bands could make people this excited with new material? For most, you just hope they don't embarass themselves but few are able to add something potentially classic to their already established catalogue.
I didn't immediately love The Book of Souls when it came out. I was frustrated with it. How it felt, how it was played - it truly isn't polished. But today I love a few songs on it and play it the most of all. Wouldn't really change anything on it. Might be the same for Senjutsu, but I can't wait to hear it no matter what.