How would you naturally phrase these please?

Ron is a lieutenant. Max is a sergeant.

1 Ron is higher ranked than Max.

2 Ron is ranked higher than Max.

3 Ron is higher in rank than Max.

4 Who is higher ranked?

5 Who is higher ranked?

6 Ron is higher up the chain than Max.

Thank yyou


#3 and #6 are good. #6 is very casual.