Funnily enough I have only started really getting into fusion rifles since TTK came out. I never got on board with them in their heyday, I preferred shotguns at the time. At the moment I use: Panta Rhei, The Vacancy, Thesan, Telesto, mainly. I would say that the Panty Raid is the most different than the other two, but it is my real favourite. The Vacancy is also growing on me. I try to love Ashraven's Flight and Split Shifter Pro but the rolls I have of those have far too much cone spread (even on high stability rolls) same goes for Darkblade's spite. The Vortex is ok, very much middle ground, Hitchhiker is a BEAST if you pair it with the right class and primary (Stormcaller, Tlaloc being my choice). Long far gone is orange. therefore I haven't tried it. The raid fusion rifle tends to get immediately infused, so I haven't really tried it. I think what I'm saying is that you can be successful with more than just Thesan, despite Thesan being a very good archetype.