So 50 games and Excel spreadsheet.
All games were 4 investigators, random assortment. Stats don't try to track synergies which doubtless do have some effect but hopefully will average out a bit. Deaths mean "pre loss deaths' in the event of a loss (and all thus dead/insane).
Results tracked for each investigator. Overall the win rate is 70% and the average score is 3879 (includes win and loss scores).
Best 5 Investigators:
Bob (11 for 12) 90% win rate, 0% deaths, average score 4294
Carolyn (9 for 12) 82% win rate, 0% deaths, average score 4552
Vincent (16 for 20) 80% win rate, 15% deaths, average score 4078
Mary (11 for 14) 79% win rate, 14% deaths, average score 3967
Mandy (10 for 13) 77% win rate, 15% deaths, average score 4065
Worst Investigators: Joe (50% win rate), Pete (56%), Amanda (60%), Dexter (62%)
Most common investigator pulled randomly Vincent at 20/50 and least common Jenny at 7/50.
Best Score 5665, Worst Score 60 (3 midnighters at start of game including Curator)
Still having fun!