Unless you are testing malware on your system for the heck of it, any of these antivirus products will be good for you and has 99.9% chance of protecting you under any given condition in a real-world scenario.
If the tests tell that a product scored 70-90% against malware samples, it's still not a bad score at all, because it was specifically asking for trouble when it was testing the malware samples on their system.
Forget what reviews say, just stick to the one you like. All these BB, System Watcher, Signatures, Heuristics, Dynamic tests etc are to be taken with a grain of salt if you practice safe browsing habits.