I've got both running, and I find GPT4 more useful. Unless I'm using it wrong, Copilot is "better autocomplete" and saves some typing. GPT4 can help you reason

I've got both running, and I find GPT4 more useful. Unless I'm using it wrong, Copilot is "better autocomplete" and saves some typing. GPT4 can help you reason about code, and has helpful suggestions about debugging. I'm probably going to bin Copilot.