nah, witcher 1 is shit
really cannot grasp any kind of mentality to justify it being better than 2 or 3 aside from maybe its alchemy system which is just very few to try to compare to everything witcher 3 did right.
I prefer something janky but charming to corporate blandness.
Music: Witcher 1 basically had the medieval slavic vibe down perfectly. Not saying W3 didn't have good music, I quite enjoyed it (apart from the one that spams whenever you enter combat, got jarring after the 500th time), but W1 just has it locked down for how it fits the world.
Tone & Atmosphere: Partly due do the music, but the setup of Vizima outskirts, Slums, Trade Quarter, Murky Waters, etc. sets the tone perfectly of just different classes of humans. Not majestic, just dirty humans (and elves and dwarfs). Yes, there's the typical villager in W3, but it still feels like a fairytale to me, and that's DESPITE the battlefields of dead soldiers, etc. Hub worlds also worked better than open world.
Story: Overall, from a technical point of view, W1 has the best written plot & ending. You can argue "writing" is better in the others, and while W1 had B-movie charm to it, W2 and W3 were too bland to make me believe its "better" simply due to production value. W2 I can respect, but not W3.
Either way, for every fuck up Witcher 1 had, I can give one in the other games. The problem is, W1 fuckups are funny/charming, W3 fuckups include awkward exposition that ruins the scene.
I mean, I can keep going and going but it's simpler to just name the things W3 did better (not going into combat, beating a dead horse with that convo already). Witcher 3 did stay faithful to Witcher 1 designs (apart from Geralt, which I didn't like), but Kaer Mohren and other places. Additionally, Hearts of Stone was the best part of all 3 Witcher games, which is a shame they immediately fucked it with Blood & Wine. I don't even hate this game, but I can rarely praise it for things I believe they did well because of the dickriding from everyone.
Gothic (I only played the first) was a game I thought was gonna be in my all time favourites, but the second I got derailed into the generic save the world mission is when it just became "good" to me. But that's still better than Witcher 3, because I never got to feel more than "meh" until HOS, which was them immediately shut down by Blood & Wine.
TL;DR Witcher 1, though Eurojank, is charming and has important aspects that are the best in the trilogy. Witcher 3 is bland and corporate, but dragging out the same bland NPCs and dialogue in a pretty open world is enough to trick the masses.