Mine would be the fragfarmer snowcone prostrata, Oregon tort, ATL purple simplex. Out of those three the Oregon tort is probably the quickest. When I fragged my PM it stimulated a little growth spurt. Patience grasshopper
Tyree simplex for me but I don't think I've found it's " spot " yet. I feel like it has mood swings like it likes a spot then hates it a month or two later.
i would say romells ultimate rainbow acro..... i started with a tiny piece thou and have had it for about 8 months and just lost it....
my purple monster was slow and after like 4 months it took off!!!!!
Atlantis red cytherea and a green/purple simplex for me. The first encrusted for almost 2 years before branching and the second has done nothing in almost 1 year.