I can't give you macro shots but I have a good selection of PBT sets and can give you my personal opinions of their texture.
I have:
- BSP
- Vortex Stock Poker II
- Leopold Thick from FC750R
- Geekkeys Thick(unknown manufacturer)
- Vortex Doubleshot PBT
- Tai-Hao Doubleshot PBT
- Imsto Dyesub in the mail (Vortex thick keycaps with Imsto dyesub)
The PBTs I am missing off the top of my head are SP, Plum, Keycool, Ducky, and any Topre.
Okay ranking them from smoothest to most textured/rough(1 being smoothest)
1. BSP (Personal favorite in terms of feeling)
2. Vortex Thick (stock Poker II)
2. Leopold
3. Vortex Doubleshot (feels rougher than the thick)
4. Geekkeys Thick
5. Tai-Hao Doubleshot
I have Vortex thick and Leopold tied because it's too hard to tell a difference between them feel wise.