Sato Racing Vs. T-rex Racing Vs. Factory Triumph

Hello. I apologize if this has been asked, and answered, many times before. A quick search of the forum did not reveal the information I am searching for.

I want to purchase frame sliders and engine protectors for my Street Triple and I am seriously considering these three brands: Sato Racing, T-Rex Racing, and the factory Triumph parts. While I am certain all three make good products, my question is which one offers the best protection? Particularly with the engine protection...Sato Racing makes an actual slider where as the other two offer an engine case cover. Is one type of protection better than the other?

Here are links to the products I am considering:
Sato Racing frame sliders: https://satoracing.com/FrameSliders_TriumphStreetTriple765.htm
Sato Racing engine sliders: https://satoracing.com/enginesliders_triumphdaytona675_13.htm
T-Rex Racing frame sliders: https://www.t-rex-racing.com/Triumph-Street-Triple-RS-No-Cut-Frame-Sliders-p/n10-17.htm

I assume everyone here is familiar with the factory parts and I did not post links to those.

Thank you in advance for any, and all, assistance. I appreciate the advice.