I am relatively nonchalant on this matter. I absolutely despise regular pencils, but I love mechanical. On the other hand, the pens I use are hard to find. I'm about even.
Bic Velocity Pencil(very smooth writing and cool features)
Pentel Energel Retractable(great smooth writing)
Yes, I am nerdy enough to ACTUALLY post a picture of my favorite pen and mechanical pencil