anti-malware

So I understand Anti-Malware is more broad, and im sure someone posted the answer, but i cant find it anywhere. I have malwarebytes downloaded and i run it periodically, i get anti malware is better. Is there any reason to have an anti-virus to scan periodically as well? Or should I just run...

So I have this thing that randomly tries to reroute my browsers to Pushwhy.com, AVG is preventing it from actually doing anything but at the same time it doesn't pick it up on deep scans. The only suggestions I have found that don't require a Stevie Jobs level of knowledge is to download...