You didn't specify which F-15. -C? -E?
Generally the Hasegawa F-15As, -Cs and -Ds are considered the best -A, -C and -D models. The Revell F-15E is considered the best -E model. Plus, there is quite a bit of AM stuff for these kits.
The Tamiya F-15C is very good as far as shape goes but it does not have full length intakes and the radome is a slightly smaller diameter than where it mates to the fuselage.
The old Monogram F-15As and -Cs have the most accurate overall shape but they lack the intake trunks and have raised panel lines.
The Hasegawa F-15E is basically a -D model with some -E parts added to it. Same with the Academy F-15E. Its a -D with -E parts. Both are descent kits but they have obvious accuracy issues.