The Firebird
Commoner
I consider myself a skilled user and have a subscription so I decided to take you up on this. Rather than asking for an answer (poor practice) I asked it to look for reasonable sources. (Also good-- "tell me about the pros and cons" or "discuss some relevant factors").Perhaps someone with a lot more skill and confidence (and a paid subscription to an A.I. program) can generate more useful information?
It ended up giving the same response folks here did--there are no good data. It suggested a few options to look into (AL logs, for example) while discussing their limitations.
And it found a source I wasn't aware of, "FIREBALL", a dataset of text history from games that used the Avrae bot. It proposed looking through that for death instances and compiling them. I didn't go through the FIREBALL data at all to see if it includes enough information. It's an interesting idea.