Interesting question this, only because for me it was a "no-brainer" until a colleague made comment.
I personally prefer a wet situation; I have a CS 85L with waterman black and a Parker 51 with waterman violet in everyday use. Although the CS has a tendency to scratch the paper, both pens write wet and consequently I have a blotter around.
My colleague, preferred a pen+ink combo that I would consider as a pain... it would dry on the page almost immediatly, and would offer good shading.
Don't care I like it wet... so I gave her all my Private Reserve ink I have in stock