Montblanc 149 with a springy wet OM nib
Sheaffer Legacy (fantasy) - love the Sheaffer nibs when they were made in-house. This just has a basic M nib, on the narrow side, but it writes so nicely. That, and those inlaid nibs are simply gorgeous.
Ancora Perla- another in-house made nib with a lot of personality. Says M but writes more like a nice juicy broad.
I swore that I would never own a Montblanc- I'm just not interested in status statements. Then I went to the DC pen show several years ago and was trying out various pens... and a vendor noticed how I hold pens and brought out a used 149 with the OM nib and inked it up for me to try. It was so comfortable to hold and the nib was a pure delight, smooth and springy. Needless to say it followed me home and has been my primary pen since then. I think that was 2013?