The middle one has just that extra bit of detail, I like it.

The third one seems to go just that little bit too far. Hard to say why but the peaks that are catching the sunlight just look a bit too strong compared to the rest.
I have the same problem deciding when enough is enough. Sometimes I have maxed everything out to overprocess it and see where it would go and which bits stand out as horrible. Then I wind it back until those bad features are gone.