GitHub Copilot vs Cursor vs Claude — I Used All 3 for 30 Days, Here's My Honest Winner

I need to tell you something embarrassing. For six months, I was paying for three AI coding tools simultaneously. GitHub Copilot. Cursor Pro. Claude Pro. Every month, $60 disappeared from my account. And every day, I'd switch between all three — never fully committing to any of them, never sure which one was actually making me better. My girlfriend noticed the charges on our shared account. "You're paying $60 a month for autocomplete?" I didn't have a good answer. So I ran an experiment. 30 days. Three tools. One real project. Actual data. Here's what I found — and it surprised me. 🚀 The Setup — How I Tested This Fairly Before I give you the results, let me explain how I made this fair. I built the same feature with each tool — a complete user authentication system with JWT tokens, refresh logic, protected routes, and error handling. Same requirements. Same codebase. Different tool each time. I measured: Time to working code — how fast did I get something that actually ran? Code qualit