Platinum 3776 Century Bourgogne

The very specific type of feedback you get with Platinum's broad and coarse nibs is my favourite nib character out of any fountain pen brand. It's very consistent in all stroke directions, nor does the lubrication or flow of the ink seem to significantly change how the nib acts on the paper. It doesn't feel like you are having to overcome resistance to get the nib to move. Rather, the faster you move, the more the nib gets "sucked onto the paper" so it doesn't run away from you, without feeling draggy while you're moving slowly. Sailor, Diplomat and Faber-Castell also make excellent nibs with a feedbacky character, but I still prefer Platinum by quite some margin.