There may be some similarities between chakras, dantiens, meridians, nadis etc. But is there any practical use in trying to establish similarity or difference in these systems?
Each of these is a part of different, complete systems of energy development and these systems use them in different ways. Pick any one of these two systems and if practiced well, results come.
Again, these components really are of no practical significance in isolation, but the devil is in the detail - how exactly does a system/toolkit use these components? Certain fire-based Daoist schools may use Dantiens similar to chakras while other water-based schools may have a completely different approach to them. Tibetan Tantric systems use both Daoist and Tantra concepts with a degree of syncretism (Chandali Yoga is their version of Kundalini Yoga).
There is really no one or best way of doing things (there are bad ways of doing them though) - they all have their merits. 
And many times, availability/access is a key consideration these days - which system can one learn easily with as little of dilution as possible.