The best taste and performance I've found is dripping with Avid's HH.357 atty. Fortunately, I can get the same taste and performance with an HH.357 in my AMP tanks.
Far down on the list in order of preference:
Kanger M3 clearo
RDA
RBA
Boge Vivi Nova
Kanger T3
Carto Tank
Carto
I've got Kanger Pro tanks and Innokin iClears coming in coops but I'm not expecting either to come close to my HH-357 and AMP tanks for taste and performance.
Far down on the list in order of preference:
Kanger M3 clearo
RDA
RBA
Boge Vivi Nova
Kanger T3
Carto Tank
Carto
I've got Kanger Pro tanks and Innokin iClears coming in coops but I'm not expecting either to come close to my HH-357 and AMP tanks for taste and performance.