I've loads of different pens, but there are some that I use a lot. They include these
the Uni-ball eye
and occasionally, when I need a brown/sepia look I use this Faber-Castell PITT pen
but how do they perform, bearing in mind that I add watercolours sometimes. Getting a pen that doesn't Run Everywhere is essential.
That can also work in my favour though, like sketching William, the ink runs perfectly in the V5. Here's a little chart....
and my notes here on how I found them