I'll start with something lewd. Dick & Boob Rankings and Roasties & Innies.

First off, let's do Boobs (from biggest to smallest):
>Huntress
Big Italian Milkers with nice pink aerolas.
>Catwoman
Big (Half)Italian Milkers with nice pink aerlas (but smaller than Helena's).
>Barbara
Nice and full with little freckles on them.
>Cass
Fun Asian globes.
>Steph
Average, I suppose.
>Kate
I honestly see her as pretty sticky.

Roasties V. Innies: Dawn Of Toasties:
>Roasties
Steph
Kate
Selina
>Innies
Helena
Cass
Barbara

And now, the main show; Dicks (from biggest to smallest):
> Alfred
A literal BBC Big British Cock.
>Dick
The biggest manslut that every woman wants to fuck, and then comes back for seconds, must have the appropriate equipment. I imagine it longer than fatter but generally big. Smooth and straight but with a slight curve at the end.
>Jason
All that angst and edginess wouldn't work if he didn't have something good and meaty down there. He'd be shorter than Grayson, but fatter. Veiny and straight as an arrow.
>Batman
I know, I know, Morrison writes him as having a 12" cock or whatever. But I think he's got a "Goldilocks Cock". Not too small, not too big. Not too skinny, not too fat. It's not straight and has an upwards curve, like a "hook", or bommerang, standing at attention. It's got veins all over too. Honestly, I always saw Batman as a "Jack Of All Trades" who should be decent at most things, but never be exceptional at anything to the point where he rivals others.
>Jean-Paul
Long, but rather skinny, skirting to average, so volume-wise he's lower.
>Tim
Average, I suppose. Who cares about Tim?

Alright, that's it, now share y-
>"b-but what about the others?"
Who? Damian's a kid, and there's nobody else, anon.