OP, next time do a search on here before posting a new thread. This has been gone over many many many times. Numerous threads about it.
That said, I can't find it now, but this site has a questionare that you fill out and it gives you the best av and fw for your needs.
I use avira (antivirus), malwarebytes (anti malware), and comodo (firewall). I love comodo. Best firewall I've ever used. If you do connect to open wifi alot, I would suggest this. If you install programs to try them out, comodo, if you do anything at all of any risky behavior, comodo.