I recently got into Amiga emulation and I wonder about version of games that are better (either graphics, sounds or some gameplay features) on Amiga than on DOS. I read that the Gold Box games are part of this category. Is it true?
Partly.
The Amiga version of Secret of the Silver Blades has a serious bug; Cloaks of Displacement give you total immunty to physical attacks, so I'd definitely use the DOS version for a playthrough of the Pools series.
The Amiga versions of the Krynn games have much better looking premade combat icons, which is nice unless you actually enjoy "painting your own figures".
But overall the games play better using DosBox, since you avoid disk swapping and long saving and loading times. The older games don't take advantage of using several floppy disk drives, and I'm not sure if all or any of them can be installed to hard disk using WHDLoad.