My favorite Ultima, and quite probably my favorite computer game of all time.
Storyline, total non-linear playability, music (sadly, not on the PC distribution), characters, and graphics (slightly more detailed than the Ultima IV tiles, but much better looking overall).
Again, the lack of music on the PC version. Go get an Apple or Commodore emulator and play this game there to hear the great tunes!
The Bottom Line
Absolutely one of the finest games of all time. I even made a website for it!