Scheduling Conflict

I have taken 3 years of Spanish, and honors bio/chem/physics. Since the AP chem and AP bio teachers are phenominal, i decided to take both ap chem and bio my senior year. By taking those classes, though, i will not be able to take a fourth year of spanish… Is this a bad call for top 15 schools? I also did this to play the GPA game since thats what some of my peers are doing as well. Thanks