Organic pads supposedly better grip but shorter life.
Sintered longer lasting.
You would want to be seriously in tune with the universe to tell the difference in stopping power.
tiogas are pants. Some of the newer panaracers are not too bad.
As for the sintered v organic pads, the sintered are much better for dh and high speed riding. The organics are better for xc riding but don't last as long as sintered. At high speed the organics fade but they have much better bite at low speed.