COD Screen Protector Film Matte (Anti-Glare) for Samsung Galaxy Note 10.1 2014 Edition Tablet (3-pack) - $4.85 (+$3.85 shipping)
COD Screen Protector Film Clear (Invisible) for Samsung Galaxy Note 10.1 2014 Edition Tablet (3-pack) - $9.85 (free shipping with Prime)
I took a few up close pics with my DSLR to compare text clarity, and also have a video review to compare in addition to clarity, light diffusion, and how they work with the S Pen. Also did a video to better compare not only text clarity, but also light diffusion, and to show how well the S Pen works with each.
After using both of these protectors you really can't go wrong with either one. But if you plan on using the S Pen a lot, go with Ultra Crystal and you will be happy. If you want to see these pictures in higher resolution, checkout the source images on my Project Log.
Mr. Armageddon's Project Log
I'm going to keep both of these protectors on for the next few days, so if you guys have any questions, let me know.
EDIT: One thing I forgot to note, the Anti-glare also does a good job hiding finger prints, whereas the Ultra Clear is a finger print magnet.