Comparison of Nikon D3200 and D5200?

Which is better? Regardless of the point that D5200 has articulated screen and more focus points.
What are Fps? And Which lenses are good for shooting sports activities and faces?

They are both excellent cameras. The D5200 has some features that the D3200 doesn't, but you have to pay for them and maybe you won't ever use them. You have to decide.
http://snapsort.com/...ikon-D5200

fps = frames per second. When shooting continuous, it will generally be in the range of 3 to 7 frames per second. It also applies to video, and that runs closer to 30fps.

For sports you want a decent zoom with a fast aperture, such as the Nikon 17-55mm f/2.8
http://www.amazon.com/...000144I2Q/

or the Tamron 17-50mm, f/2.8
http://www.amazon.com/...00156OZ68/

For faces, keep using our kit lens at around 50mm and see what you want. Maybe the Nikon 50mm f/1.8. Maybe you'll want something longer, like an 85mm or 105mm. Depends on what you want to do.