As Courtney said the F15 and F16 are the better dogfighters than F18 on paper due to better thrust to weight and turning performance (2 circle).
Having fought the F16, F15 many times in the Super Hornet, as well as the Typhoon and F22, F18 has come off better against the 16,15 and Typhoon in my experience (stand fast completely clean F16!) on most occasions, due to bringing the fight to where it suits the Hornet. Pulling 9 g is not everything.
F22 just was not cricket however and appeared to defeat the laws of physics and all that is natural!