I think there are many ideal cocks ...
or maybe I'm just a slut :tongue:
No, what I mean is... cocks that are ideal in different circumstances.
The perfect one for being fucked by is long and reasonably thick, with similar girth all the way along.. at least, that would work for me.
The perfect one on a bottom is one that pokes up at an extreme angle so that I can feel it hard against my stomach as we fuck.
And then there are some cocks that you just want to look at for their aesthetic perfection. Indeed, I shall name no names, but one member of LPSG has what I would consider the most aesthetically pleasing cock I have ever seen.
So really, I think that having to pick one ideal cock only .. would be far too limiting, for me at least.
EDIT: what kind of anally fixated mood was I in when I wrote this earlier, as I totally forgot cocks that are ideal for sucking
... which in my book, requires a combination of aesthetic pleasure and, ideally, a variety of surface textures.