If the gun is a defensive 1911, then ditch the full length guide rod. A standard GI rod gives you more options for single handed stoppage drills.
If it is a comp gun, then keep it or lose, your choice.
The FLGR only comes into its own at lower end of the load cycle, like reloading very low velocity rounds, and you want a smooth cycling of the recoil spring to minise wasted energy transfer. You may also want a little bit of extra weight in the frame area to minimise muzzle rise upon recoil, and using a Tugsten FLGR as it is heavier and better upon recoil, although much more expensive.
Its all about tailoring the gun for the need at hand, not saying which is better.