I should say that probably not the best for writing letters, but has its place, is University Roman. When my husband and I got married, I chose less formal cards (floral border with sprays of red-violet flowers) for the invitations and used University Roman Bold in a color ink close to that of the border.
Hey, we didn't use the "standard" wedding music for the ceremony, either : my march down the aisle was to an arrangement of the tune for the old ballad "Willie of Winsbury" and the recessional was Paul Stookey's "The Wedding Song". Of course several years later I was at a friend's house and suddenly discovered that I was not the first to come up with the idea for WoW to be a great processional -- it's the music in the march down to the sea in the old horror movie The Wicker Man (the original, with Christopher Lee as Lord Summerisle).
Ruth Morrisson aka inkstainedruth