Hey I'm new on here but figured I'd chime in on Technora.
It is an Aramid, where as Dyneema is basically made of plastic.
Aramids are inferior to Dyneema in every way but one.
The biggest problem with them is they have shit for UV resistance. For a winch line that may be exposed on the drum this is a real problem. Dyneema can be left in the straight sun, outside, for 2 years with only 20 percent breaking load loss. Technora or Kevlar would be a powdery mess in this time.
Kevlar is a lot weaker, and Technora also a good bit weaker than Dyneema for the same weight/diameter.
Considering Dyneema (Amsteel blue) is stronger, more UV resistant, etc all while being cheaper than Technora, I'm not sure of a compelling reason to chose an aramid fiber over UHMWPE.
Good luck in your choice though.
(Disclaimer: No affil with any rope company, I am a RF technician who just likes ropes