Summer Science Program or Harvard Secondary School Program

Hi. Does anyone know which summer program is more exciting & noteworthy: the Summer Science Program (SSP) or the Harvard Secondary School Program (ironically, also known as SSP)? For the Harvard program, I would do the 7 week option, during which students get to take classes at Harvard for actual college credit, which sounds super exciting. For the SSP program, I would do the astrophysics program, which also sounds super cool.