Being the change I want to see (more traffic and more interesting pens here)...
My primary pens for today are a Safari F inked with Tsutsuji, and a Kaweco Lilliput in brass, with the Kaweco Blue cartridge it came with (also F). I'll refill it with something more interesting when the time comes, just haven't decided what.
On an average day, I might rotate through two pens; or everything I have inked. Just depends on my mood.
Edit: That's Midori A6 they're sitting on / scribbled on, and Clairefontaine A5 in the background.
Haven't quite figured out how to carry it yet. For now, it goes in a pocket in my backpack with my lighter but that's inconvenient if I'm driving, etc.