That's an extremely high bar. But to the extent that critics and awards are the metric we have, he is an objectively good writer.

Oh course it's a high bar! Why should anyone care about this work outside of the time of their release? It's modern culture but it ain't gonna be passed down anytime soon.

If the bar is that people will continue reading their books in 200 years, than which fiction writers of the last few decades would go into your list of "good"?

I don't know because you're asking me something that is impossible for a human that only lives to ~80 years.

Try asking better questions if you want better responses.

Take your best guess, obviously. The question is fine.

You're already confidently predicting a negative future for Ender's Game, so you're clearly not adverse to predictions.

I don't know that you can establish objectively if someone is a good writer. He's an acclaimed, award-winning writer, sure.