Tried most styles and materials. I suspect personal preference will evolve with time and technique, but right now playing electric and acoustic rythym, learning and reinforcing pentatonic scales and developing impro, I like Dunlop nylons best, thickness dependent upon purpose. I have the range of Dunlop nylons.

I tried the Jazz III, but found it a bit small and its thickness too limiting at my current skill level. Suspect I might rediscover the love for it in a couple of years? Right now, I compromise with Joyo's superb Jazz picks which are marginally thinner and a fraction larger than Dunlop's Jazz III. I really like their price too.

Also tried the Dunlop Tortex range which I though I would like, but prefer either the Joyo or Dunlop nylons. Unlike Tortex, both of those have a moulded in cross-hatched grip.

No problems here with slipping or dropping picks with those, although they do have a magically disappearing characteristic which is a persistent niusance!