I use any of the 3 big frontier models; claude, chatgpt, gemini

I only use the cli tools; claude code, codex, gemini cli (which is being phased out for antigravity cli soon)

I've generally had the best luck and enjoy working with claude the most, though that may be because that's the model we use at work (from aws bedrock, we pay per token and always have). Gemini and codex have flip flopped on 2nd place, though right now I'd lean Codex.

On my personal stuff I typically use codex or gemini because those two I have subscriptions, claude I still pay per token but through anthropic API like 90% of the time and 10% of the time through bedrock.