The copilot agent stuff in IntelliJ works relatively well in my experience, they managed to implement a quite cursor-like “accept/reject” UI in a plugin, you know, forking IDEA. There are some areas like getting it to use git tools where cursor works more smoothly but you can coax Copilot into producing the same results. I’m just generally happier working in IntelliJ vs VSCode so I’ve tended to favour Copilot.
Never tried Windsurf in it’s recent form but we did evaluate it when it was still called Codeium and everyone liked Copilot better.