Does anyone know which version of Krynn games is superior? PC or AMIGA (or maybe C64)?

The Amiga version has superior graphics in teh first 2 games, the PC-Version in the last.

I recommend the PC Version since it works flawlessly with dosbox while an amiga emulator is pretty difficult to handle and if the disk images are corrupt you're screwed.

Some of the graphics in the Amiga ports of the first two games have major differences in the amount of detail, even though the Amiga was limited to only 32 colors. Just compare the overland map in Death Knights of Krynn, between the Amiga and PC versions at MobyGames. Death Knights of Krynn really should have offered VGA graphics, considering the time it was released.

The Amiga versions of the first two games have superior sound effects too. Only the PC version of The Dark Queen of Krynn offered good sound effects, when they finally added Sound Blaster support.

The music would be superior in the PC versions, if it was not so inconsistent. Champions of Krynn and The Dark Queen of Krynn offer excellent Roland MT-32, but Death Knights of Krynn was limited to Adlib/CMS for some strange reason. The Commodore 64 versions aren't even close, in terms of graphics. There is a major difference in the amount of detail lost in all the larger images in the Commodore 64 ports.

The most crucial difference to me was that the Amiga version had custom character icons, while the DOS versions were still stuck with having to "paint" your little toy soldiers.