I've been a journalist off and on for years. However, I was thinking recently and realized I haven't journaled since I was undergoing chemo-radiation 6 years ago! yikes -- I think my journal would say I'm dead LOL.
I agree that pens make the difference. I like "fat" pens, those that don't make me cramp easily. I also like smooth flowing ink. I'm not particularly fond of very thin lines, I like mine where I can see 'em (I'm getting old, I like definition LOL).
As for color, sometimes I like black, sometimes blue, sometimes any color of the rainbow, except red. I love gel pens, but their ink runs out far too quickly to suit me. Good ol' ball point pens are great