I prefer Claude as I find I can work with it like a person. Codex works well for long running highly specified tasks, but is very annoying to work closely with.

Simple e.g.
Me: "did you run tests?"
Claude: "you're right to ask, no I didn't, I should, let me run those now, oh one failed, let me fix it, let me run again, ok they all pass now. I have now run tests and all are green"
Vs
Me: "did you run tests?"
Codex: "no"
Me: "run them now"
Codex: "I have run them and one test is failing"
...
And so on, so you have to waste time with Codex with five or six subsequent prompts to get to the same outcome.