What is the best firewall to control the internet and make it safe to my network Sophos or PFsense or mikrotec?

Palo Alto firewall is the best firewall for giving the protection. This will include all the UTM features and we can use this firewall as Virtual instances too. This is best fit for any DC architecture.

I would suggest to use watchguard firewall than to use sophos,PFsense and mikrotec although among with the three firewall,sophos UTM is fairly good but it can't equally to watchguard firewall because of this features where watchguard offered:

1.Firewall products: firebox,firebox,firebox,firebox and firebox SOHO

2.MSSLiveSecurity,ControlCenter,SecuritySuite,firebox System,Server lock

3.Customized security policies,-hour monitoring and management, rapid emergency response

 4.Internet security,government security,e-commerce security,LAN and WAN security, small to medium size of business,SOHO

5.Automatic software updates,expanded reporting and analysis

Sophos XG firewall is the best solution.

The best solution is SOPHOS, where the sophos is giving the protection to entire network as well as end user device ( Data Encryption, Mobile Devices protection etc.. )