Sten_MkIIs: No.
But for openworld game with good writing with nice scenario and character handling, isn't the only parts that matters.
Mechanics of game also important. And here we got oversimplified approach like chemistry mechanism (which is convinient for player in certain occaisions, but still). And we have crude inconvinient UI and HUD, which made for TV sets and consoles and not for PC players.
With all that - It's good detailed game with flaws in mechanics and gameplay, so i can't call it "masterpiece".
Point me to an RPG game that's better OVERALL than Witcher 3. There isn't one. No doubt you can find a game that's better gameplay-wise or mechanics-wise but you won't find a better story, choices and consequences and characters anywhere. Yeah there's occasional hiccup in the writing, some dialogue line out of place, some inconsistent tone in the conversation but the game FEELS light years ahead in terms of storytelling.
What else you got in the RPG genre now ? Fallout 4 ? Skyrim ? Don't make me laugh. I heard Dragon Age was pretty good but I haven't played it myself so I can't really say.
You can't have it all. At least not yet. Every improvement costs additional development time. That pushes the release away. At some point you have to say: OK, this is it. If you do it too early - the game feels rushed and incomplete. Too late - the game might be already dated on release or people have lost interest in it because they waited too long. You have to strike balance between what you can put in the game and what needs to be cut. The combat system was supposed to be much more in-depth, but that was scrapped due to lack of time (some sort of monster weak spot system, presumably inspired by the one from Metal Gear Rising: Revengance). There were supposed to be many more monsters. The world was supposed to be a single zone. I'm not a fan of the alchemy system either, but that's hardly a big deal.
In the end I think they did the right thing. The game ain't perfect - but it's still the best game I've ever played.
Why do I think that ? I rarely finish games. I play usually around 50-75% of a game during a week or 2 and get distracted by something (another game, life, work, w/e). I hardly ever come back to finish them. I played TW3 for a month straight. Start to finish. That was 3 months ago. I'm already playing it again. Even if I can't put my finger on it - something is different about this one. Must have done something right.