Yes, Diving fins are all over the place with regard to personal preference and it takes years I suppose to find what an individual's is - (personal preference)
I have been using Rocket 2 fins almost exclusively for local diving for about 2 years and didn't care for them at all until they finally got "broken in" What I mean is that my set became much less stiff after 100 - 200 dives, being tossed around, out in the sun, beat up a little. I think the blades are a lot less stiff now than when new. I find the quick release buckle assemblies very stout as well although I never need to use the quick release spring squezzie things. I just pull em on and go in.
I hope someday my Ducks feel like these fins
As far as power in current and acceleration - I think my Rockets luck butt. But again, it's all what an individual likes. Plastic is out of the question so I guess we like jet fins, ducks, Hollis, OMS - the big rubber stuff ! My LDS has the new all black Churchill fins and I'm very close to picking up a set of those but I'm kind of embarrassed at how many fins I have laying around here - my place looks like a dive shop