I have been riding the new Tectonics Phoenix for the last 3 weeks now. They feel great straight away. Super positive grip without putting the nose of my board down. It felt fast, really slippery and smooth. You will need to engage the rail a little more when gybing compared to the Fury/Rapor.
The Phoenix settles more in the water giving it an edge in overpowered, choppy, gusty, scary conditions.
The Fury/Raptor has a little more flex with the power of the tip providing a controlled and level lift and shock absorption to improve the top end of the wider, bigger boards.
There is not much difference. Both fins are exceptional throughout the size range and you can not go wrong with either one. But for me I would go for the Phoenix and the larger fin sizes go for the Fury/Raptor. Phoenix 30-36 ( 38 ) and Fury/Raptor 38 above.
The range of these fins is incredible, it is easy to mistakenly use them over and under sized since they keep performing though they are the fastest in the correct size.