When possible, you should always go with Pro. Not necessarily any better for gaming out of the box, but Pro gives you several benefits that will help get the most out of your system:
- Group Policy editor to customize and optimize your install
- Hyper-V for using virtual machines to minimize the risk of viruses when dealing with unknown software. Put some AV software in a virtual machine and safely check files for infection with 0 risk to your system.
- Remote Desktop so you can access your computer from elsewhere if necessary (helpful if you are at a friend's house and want to set up your computer as a server for a bit.)
- Bitlocker, protects your files a bit more than nothing
- More control over updates. Especially useful for...