I disagree talesin - Fish strikes me as a talking like a politician who says little with lots of posture to avoid being pinned to something specific and testable. Let's examine the logical flaws:
Proof that God exists does not depend upon the evidence, but on the rules of evidence, and ultimately upon who is trying the case -who has the final say.
Let's work this backwards. Let's use something to represent an essential truth - let's say a naked monarch parading down a high street under the misapprehension that they are wearing clothing that has a magical property. Can any nominated judge (be it a group or a person or a talking donkey) anywhere change one iota of the actual reality? Can such a judge actually, simply by their judgment actually create as much as a single pair of magically infused undercrackers? No of course not. It is a sleight of hand to postulate some vapourware judge to argue over the facts on the ground.
'Rules of evidence'. Once again a completely cooked notion. Are there any rules of evidence that again can change the reality? No of course not - there are only tangles twists and attempts to misdirect the gaze from the monarchs jewels.
The question about what types of evidence would be useful does have use when confusion or a lack of clarity exists. Does it here? I suspect not, this isn't a legal matter or a debate on whether Monopoly fines end up in Free Parking, and there isn't a need to pretend to some statement or list since they are implicit in our shared human existence. We are talking about the material world we exist in and the shared phenomenon we experience. You see when a child can innocently point out the truth without recourse to special rules and only the lie teller requires the magical rules of exception (only the stupid cannot see the beautiful fabric) then you know what the 'rules' are for.
Finally to claim on one hand a familiarity with the word 'proof' and then to spend the remainder of the sentence producing a new version of proof tied to an imaginary judge and a set of special rules that, let us be well aware will always favour the tailor who made the 'clothes' that the ruler now wears,it is just a politician's ruse, a con, a trick to avoid the simple statement - the King is naked.
When I fully believed I genuinely sought out opportunities to test the 'truth' I believed (and still believe) in 'the refiner's fire' the concept that testing, trying and examining a truth will leave it shorn of all untruths. As a believer I was under the mistaken impression that such things as the Book of Mormon, the global flood and the age of the earth were all accurately described by and encapsulated in the LDS version of Jehovah. It wasn't until I was about 30 that I first started to be met by serious , factual rebuttal (a lot of it here!) that I couldn't square anymore. Before that point I hadn't engaged anyone in conversation educated enough or willing to exhaustively challenge and deconstruct the truths I held dear and i hadn't done enough of my own research to know what I didn't know. This increased my belief that they were not just subjectively true but also objectively true. Only when hard facts and an unyielding discussion occurred could I see the mistakes in my position. The subjective experiences I had had were not (initially) challenged - I had to do that myself later. The key to unlocking the worldview was to look at the objective things and apply logic and the scientific method to test them.
If the only evidence brought to the table is subjective then one argues for a God who has no material impact on the universe except in the chemistry of human brains. If that really is it then that's fine - its a strange God but they are welcome to it since no one else can verify it nor claim that its the same one in everyone's mind. If however, believers are arguing for some supreme being who impacts and is the cause of pretty much everything then let's not play semantics. They can just point at the evidence and we can discuss it - shouldn't be hard ,it should be all around.