I own only Fallout Classic. But since you can't review Fallout Classic anymore on GOG I will do it here. Where to start? I've completed it a couple of times now. And I still consider to replay it one more time. Fallout is masterpice of atmosphere. Postapocaliptic dirt detailed art style, bloody good soundtrack, feeling that never being the same again and that real emptiness which you discover on a radioactive desert will make you almost sad. I always was fan of more colorful, fantasy, peaceful worlds. But I have part of me, which sometimes came out, where things like Alien, Judge Dredd, Diablo and Fallout are. Somehow those hopeless, dirt, heavy and scary visions attract me against my will. It's a very solitary experience, when new world just made its first step after nuclear war. Where your road, journey is almost more important than the final goal of the game. Where exploring new reality and discovering artifacts of the past is sometimes more important than your health or even life. And again compare to its sequel that game is very similar with a vibe to first Baldur's Gate (compared to its sequel). Smaller, less contents, less epic, but more truthfully, deep and personal.
I don't own and never played Enchanced Edition. But since you can't review Baldur's Gate: The Original Saga anymore on GOG I will do it here. My first memory of this game is from high school. When my friends played it and talk about all the time. Somehow I haven't played it then, but it stayed in my memory and 10 years ago I finally tried it. Since then I have completed it four times. I could write about it's charming soundtrack (I still listen), beautiful detailed graphic, replayability and well done D&D mechanic and world implementations. But what keep me most is it's slow, quiet, peaceful experience. Countless hours of travel through the wilderness, forests, shores and mountains that fill the space between villages, towns and cities like Baldur's Gate itself. That feeling you really travel through the real world and nature. It's almost like reading Lord of the Rings books. I know there is Baldur's Gate 2 with more of everything, but first game has its unique quality and vibe which for I love it. It's similar as Fallout compares to Fallout 2 in this regards.
Long story short. I discovered Heroes of Might and Magic series 25 years ago. And since then I play it all the time. Heroes 2 took my heart, Heroes 1 keeps me hooked from time to time and Heroes 4 still tempts me. But Heroes 3 keeps me for the longest time ever game has. With its replayability, hot seat, one more turn effect and still live community that game is timeless. Show it to your wife/husband/girlfriend/boyfriend/children/grandparents and you will be playing soon even more. Don't forget about HD mod (high res support and interface improvements) and the Horn of the Abyss mod (new content like: fractions, creatures, artifacts, campaigns, mechanics and more on the developers' level of quality).