The F4 would only lose if it played bomber rules. The first F4 engagement we had (F4E) the guy got in a turning/climbing fight - no contest. Then he bugged out, rolled in at 20 miles and splashed us F1 before we even knew it.
The F15s could probably have taken the Typhoon with different tactics, may be they did before the mixup.
Same as the Buccs taking an F15C. He got sucked in and they got a score draw 1-1 with 3 ac remaining.