Moderna was the most dangerous one. I personally know two people that almost died from the second dose of moderna... in two different countries. The serious adverse events and deaths are probably something like 1-5% from moderna. Myabe less from J&J, Pfizer, AZ etc. Then you have to remember that people are usually afraid to say anything blaming the vaxx. So your odds of personally knowing anyone that had a serious adverse event are about 1/100... probably. Much less than your chances of knowing someone young and healthy that died of COVID.