Ultima 3: Gameplay Graphics Comparison
Thanks to a little help from Dungy at the Codex of Ultima Wisdom, Ultima Aiera is pleased to present a (mostly) comprehensive comparison of gameplay graphics from the known ports of Ultima 3.
As you can see, there is quite a range in terms of quality and interface design between different ports of the game; the Lairware port for Mac is probably the best-looking of the bunch.
For complete details about the different versions of the game — and the differences between — be sure to check out the Codex article on the subject.
Whoever took the PC-8801 screenshot needs to switch their PC-88 from V2 to V1 mode (or vice-versa). I could never get it to run perfectly, but the colors should look like http://imgur.com/PzFQw.png.
After that port came out, Pony Canyon bought the rights to the series in Japan and made their own PC-88 ports of the first four Ultima games. They look like http://imgur.com/mFIj1.png. (They also did most of the FM-Towns ports, you can probably tell.)