Its no competition, the F-15E is the winner here. The F111 is had its day and the Aussies are looking for a replacement. The GR4 is a capable bomber but it cannot match the multi role ability of the F15E. The main advantage I would say that an F15E would not require an Escort/Sweep as its more than capable of protecting itself, any attacker piling in would have to think twice, F15E with bombs or F15E loaded with Amraams or mixed. Why Oh why did we not buy the F15............