With all these different 4 shoe clutch systems out which one in your opinion is the best and why for buggy and truggy?

The Werks 4 shoe is my favorite. Several different flywheel weights to choose from, and the shoes last a very long time compared with the Reds, Tekno, and Alpha 4 shoes I've run.

Imo the Protek clutch is a good choice.

I’d say there’s a bunch of good ones, depends what car you have for fitment to.
some need a 32mm, more common 34mm.
if you need a 32mm then reds is a good option.
Tlr clutch is nice then there is a lot of copies of that.
it’s nice when flywheels cover the front bearing more for less dirt there.
certain clutches you can adjust quicker then others. Like reds and werks etc you gotta take the nut off the crank to get the clutch off to change shoes and springs and top plate. Then like losi protek etc you just unscrew the pins and change the shoes and springs which I find is faster easier.
also keep in mind depending what car your running you may need to change from your stock clutchbell to the clutch brand clutchbell for proper fitment.
like reds you can use the hb clutchbell on it for hb cars and works fine. I believe if you wanna use it on a losi car then you have to buy the reds clutchbell for a losi so then your gonna have to buy a bunch of extra clutchbells. So that’s another thing to think about.

Will the werks clutch shoes and springs fit the reds tetra v3 clutch?

if I remember right there different shapes. I have both I’ll take picture when I got time.

vp pro Quattro springs shoes are direct fit onto reds v3 though that I have done.dialed sells them.
dialed hobbies also sells a copy that looks like werks clutch.

No, they're very different in shape.