I don't know what you guys who say vanes have longer life do to feathers to make vanes seem so much better.

Feathers outlast vanes for me at least 5 to 1, especially with the vane cutting, nock busting goobers I've had the pleasure to shoot with.
Less problematic? Well, vanes are waterproof but that's the only thing I can think of.
Easier to fletch????? I've never noticed it being any harder to put a feather in a clamp than a vane. [8D] And you can use fletching tape on feathers. I love that stuff - quick, easy to use, quick, doesn't get glue all over your clamps, quick, easy to clean off for refletching. Did I mention quick?

It won't work at all on vanes though.
Consistently accurate - and won't throw the arrow a mile off course if it brushes a twig between you and the target.
Like you said, shoot what works for you... but don't go dissin' my feathers.