1. Because the F-18 owns the Rafale.
2. Three reasons the first is F-15/F-16/F22 are better at air to air, the A-10 warthog is better at air to ground, and the AV-8B sucks ass, why do you think the Marines have been trying to get rid of it.
3. First of all because their retired, and second because once again the F-18 fills that role better.
4. list them Im sure theres answers