5 star hands down. They hold up better and a good wool pad is hard to find. I had an ESP pad and it sored my horse. As soon as I switched pads, no more soreness. You also might want to check with Streakin. She has some experience with both and I know she hates the ESP pads.
Oh yes...I do hate them...although my loathing for ESPs is surpassed for my loathing of Air rides....
ESPs break down very easily.
If you would like any particulars feel free to PM me.
Basically, the highest percentage of virgin wool you can find in a pad is what you want-shock absorbant,conforms,wicks away moisture, no heat build up, and they LAST.
5 Stars and Best Ever wool pads have the highest percentage of virgin wool on the market. I bought a Best Ever...and I love it. I used a HD SMX pad, and it left one of my horses sore after a 1 hour ride. I bought my Best Ever, rode him HARD for 3 hours at the trainer..NO soreness with my Best Ever. (they look better IMO than 5 stars)
I've sold or trashed just about all my other pads. Im actually about to buy another one.
Heres mine on JuBaby(scuse his Dufus expression LOL)