I will do an experiment on effects of antibiotics on antibacterial growth and I will use three antibiotics: ampicilin, chloramphenicol and streptomycin. To make a hypothesis I must have a guess on which antibiotic will have the most severe effect on bacteria. So, do you know any source to find this information out or I would appreciate if you explain the reasoning behind a comparison of how severe these antibiotics.
Edit: Bacteria that will be used is E.coli.