It's a fact: Unless Uwe has been lying to us, the Pyraminx DID come first! One thing I like about the Pyraminx, is that it's just simple enough so that the Layman puzzler will occasionally stumble across a solution. I actually created my own solution to my mom's Pyraminx as a child, and was solving it regularly in kindergarden. With regards to my mom's Rubik's Cube, I could either follow the confusing notation in the cube books (at least it was pretty confusing for a 5-year-old), or Grab a flathead screwdriver and do U45, pry edge!
My mom's cube got so loose from me disassembling it every time I wanted to solve it, that the thing finally fell apart just from rotating the faces. I didn't get another Rubik's Cube until my 13th birthday in 1994. The white Meffert's Pyraminx still survives intact to this day, despite having teethmarks in it from when I was a baby!
So yes, my vote would be the Pyraminx!
My Creepy 3D Rubik's Cube Video
Yeah, Uwe is Dalai Lama and Paganotis is mother Teresa of Calcutta.