Are games as good on PC as they are on consoles

Can PC games keep up with consoles? Yes they can and then some.

Actually a personal computer has the potential to be better than it's console counterpart.
Playstations, Xbox's and the like are sent out without the ability to constantly update it's hardware (for example to change the hard drive). Especially for people that are not trained to open the consoles they own (especially since that would void most people's warranties and possibly take away their ability to get it fixed by the manufacturer at a later time).

Those that have personal computers have the option to change (software) hardware such as the Hard Drive, CPU, Graphics Card, Memory, etc. In this respect gamers always have the ability to get better, up-to-date, faster components while the console continues with what it was shipped with and can fall further and further behind the capabilities of the PC.

For this reason it will be a sales driving force for some time to come. As advancements in technology continues to develop so will the need to update consoles as well as the PC's used for gaming as well.