I am a pen, notebook, and organizational junkie.
My normal pen of choice is the Pilot G2 gel pen, in either 0.7mm (“Medium”) or 1.0mm (“Bold”) widths. I also like the Pilot Varsity disposable fountain pens, and bought a pack of Sharpie Pens today to try them out.
I also ordered a Lamy Safari fountain pen to try out something a little nicer than the Pilot disposables.
The Doane Paper concept looks great; I’m surprised nobody has come up with the idea before.
Update: My Doane Paper notebooks have come in; will do a comparison of them with the Field Notes and Moleskine equivalents with multiple pens next week (probably with the Lamy Safari, the Pilot Varsity, a Pilot G2, and the Sharpie Pen).