Better observability tools, much much bigger ecosystem (this alone probably wins the argument — there is a tendency on .NET’s side to just copy famous java libs

Better observability tools, much much bigger ecosystem (this alone probably wins the argument — there is a tendency on .NET’s side to just copy famous java libs, but worse.), better GC (sure, C# has a potentially lower performance floor due to value types/pointers/etc, but when you do have to use GC (which is most server side app), there is no match for Java’s)