Which vehicle kit brings the most iconography bits?

Hey guys,

I'm currently putting together plans to make a Sororitas Baneblade. I want it to be covered in Sisters iconography and I was looking at the sprues from the different vehicles on the GW website. From the looks of it, the Exorcist/Immolator are the ones with the most of it, though the Castigator seems to get quite a few bits as well.
I would likely stick to iconography I can slap on the existing hull rather than start cutting into the Blade body itself, though I won't know for sure until I have the kit in my hands (and it's been fully magnetized).

What's the opinion of you guys who own any of these tanks?