Hard to go wrong with DPaint for nostalgia factor as well. In the "big list of Amiga software you must use 20 years later to appreciate it for what it is", DPaint is damn near at the top of the list.
AmigaVision was always a fave of mine too, but in retrospect would seem extremely boring no most likely. That was in the day before there was much of any interactive creation tools on the market, and man - did it keep me busy for ages doing up dumb business proposals and demos that would never see the light of day

Have fun with the coverdisks, and let us know if you find any real gems!