#1 Brock Lesnar - Royal Rumble 2015
Yes, Seth Rollins' upcoming opponent at WrestleMania has already tasted the Curb Stomp multiple times and had already kicked out of it. Rollins could not even pin Brock after hitting a stomp at WrestleMania 31 after the former had cashed in during the match between the latter and Roman Reigns. While Rollins was attempting a second consecutive stomp, Lesnar easily picked The Architect up.
However, there has been an instance where Rollins got an opportunity to pin the beast after hitting the stomp - during the above mentioned triple threat match between Lesnar, Rollins and John Cena.
Corey Graves deleted his Tweet! More details HERE.
Some of you may find this entry a bit controversial. Rollins hit the Beast Incarnate with the Stomp. While pinning Lesnar, Rollins could only attain the count of two due to the apparent interference from John Cena. However, if you look closely, you could see Lesnar kicking out of the move. Even if Cena failed to break the fall, Lesnar would have been safe since he kicked out of it.