I really enjoy using Paper Mate InkJoy pens. They write smoothly, boldly and cleanly, and feel good in my hand. I've yet to have an issue with the ink, and all of the colors are clear and are dark enough to read easily. Blue and black are my favorites. Since they are ballpoints, I expect the ink will be more durable than that of a gel pen's.
They come with a (now more common) wax ball on the pen tip that keeps it from drying out before you use it -- a very good thing. The grip is comfortable and fits in my large/average size hand well, though a little thicker would be better for me. Not as comfortable as a Pilot Dr. Grip, but for less than half the price that is easily overlooked. They are much sturdier than your standard budget ball-point, and feel solid and built to last while using.
InkJoy pens are no match for Waterman, but for the price they can't be beat. They are worth the slight price increase over generic style pens and I will be getting more of these when my current batch wears out.