I was probably the person who often like to replace anti-virus, don't know why, it seems no one has matched or maybe I like to experiment with something new. Earlier I use McAfee, Norton, Avira, Kaspersky, Panda, avg, avast and others that are not so well known, and this time I tried 360 total security, free and have some anti-virus engine.
Wow, you pretty much tried them all
Yes, I also wonder to me, but as I said above, I always wanted to try, so at least I know which antivirus is suitable for me to use, simple but powerful. Starting from expensive price (I tried trial version) until free, there is a large file but not good at detecting viruses and others, until later that I found suitable for use without need to replace anti virus again.