I work with the investment teams of all of the AFPs. They're all more or less the same. What's the most important, as mentioned, is the fondo you choose, which is dependent upon your risk profile. If you don't mind a lot of risk and volatility, choose fund 3.
You can change AFPs as many times as you want with no fees or penalties. So if for whatever reason you're not happy with your chosen AFP, ring up another one and some representative will come to your office to do all of the paperwork for you in 10 minutes....very easy! They're quite competitive in keeping clients so depending on how much money you've got in your pension, you may be able to even negotiate a better commission fee.