I found another page that sort of backs up my assertion that a .45 is more effective. Note the expansion and the penetration and expansion of certain .45 bullets. The Winchester 230 gr Ranger T-Series is the gold standard it seems to me. Nothing in the 9mm category compares to the expansion and correct penetration IMO. The test is subjective like all tests though. It includes several layers of cloth to simulate clothing but depending on many factors there may be little to no clothing on your attacker. It's good to know which rounds are affected by cloth but I don't think this test tells the entire story of terminal ballistics.

https://www.luckygunner.com/labs/sel...c-tests/#45ACP