To the best of my knowledge all antibiotics basically do the same thing...kill bacteria. The problem is they can't distinguish the difference between the good bacteria in your body and the bad, so they kill them all. That is why it is important to take a good probiotic during and after taking an antibiotic.
As far as I know, the only real difference is the strength of the antibiotic; for example Levaquin is a very powerful antibiotic and will probably kill more bacteria with fewer pills than other antibiotics. So, I think you question should be, "what are the most effective probiotics out there?"