Legal arguments are based on citations of statute and case law. No ai tools do that right now. They hallucinate about 50% of the time.
Do your legal research first. Add the relevant files to the context. If the LLM provides a reference you didn’t provide you MUST verify it by hand.
If you do that it doesn’t matter which tool you use. They’ll all work well enough.
If you DONT do that, it doesn’t matter which tool you use they’ll all fail you.