Its success ratio
Source: Taringa!
The Raptor is the next generation of the F-15 that are now considered outdated. The Raptor has shown itself to be very capable in its success ratio of 108:0. This success ratio is much more advanced than the other jets, such as the F-15 and the F-5, which were tested in the 70s and 80s.
The Raptor is unparalleled in its range, stealth capability, and thrust, making it an almost perfect machine.