Comparison of oxidizer and fuel capacity by launch vehicle
Liquid oxygen (oxidizer) is always loaded much more than fuel
Starship + Super Heavy (full stack)
Approx. 4,500 tons of liquid oxygen
Approx. 1,278 tons of methane
Oxidizer : Fuel = 3.6 : 1
Falcon 9 (conceptual diagram of 2-stage total)
Oxidizer : Fuel ≈ 2.56 : 1