re: What is your preferred pen?

I only buy #4 - the uniball vision elite model is so smooth and the nib is just the right size and I can grip it for long periods of time.

I dislike 1, 2 because the nib is too fine/thin from what I remember.

7 hurts my hand to hold for long periods of time.

I remember 5 being too scratchy.

Number 3 is okay and number 6 is fine but I'm not a fountain pen guy (I've got a Parker pen and a Lamy but I don't use them much).