What Build of Mermails is the best?

As you probably know there are two different builds of Mermails. I will be talking about the different builds and there different play styles.

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Genex Mermail: This build focuses on using Genex Undine to get the effects of your Atlanteans. Since this deck sends lots of water monsters to the graveyard Moulinglacia The Elemental Lord would be a good choice in the deck. The one problem in this build is that Genex Controller is a dead draw. Some people play cards like Divine Wrath and Lightning Vortex to get rid of their Genex Controllers.

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Aqua Spirit Mermail: This build uses Aqua Spirit to swarm the field for Rank 4 XYZ plays. If you play this build then you will be doing a lot of banishing, so you should play at least one Leviar The Sea Dragon. I think that this build clogs your hand a lot.

Now that you know both of the builds i will tell you which one is the best. I think that the Genex build is the best. Try them out and tell me what you think is the best.