I'm struggling to like Titanium, but months after upgrading to 6.5 I still can't get used to it. The problem is, I'm not really a fan of Manila either; both interfaces require me to swipe across the screen to access different functions, and I'd rather have a consolidated "home screen."
I use/have used SPB MS3 for a long time, and while it's visually what I'm looking for, it seems to tank my battery a lot faster than the other two alternatives.
So basically, none/neither/not any of them right now.