I've not seen any threads on this topic before, and I'm sure it has been discussed ad infinium, but I always thought that a simple change would make elimination alliance selection better from an excitement / game standpoint: The top 8 are not allowed to pick from anyone in the top 8.
This year, we've seen top alliances picking from deeper in the filed than in previous years, and I think doing that has really lent excitement to eliminations. For me, it is really exciting to see alliances with one powerhouse team face off against a similar alliance with one powerhouse team. This furthermore makes it so the 1 or 2 seed is "going" to win which is just not very exciting (unless you are in the 1 or 2 seed alliance).
Of course, there could be abuses of this system - intentionally losing qual matches to keep yourself out of the top 8, but I think a combination of GP and perhaps a tweaking of the points earned for match wins vs. draft selection points could render that problem almost null.
In the end, I think everyone can agree having an exciting elims is preferable to watching one super alliance stomping everyone else into the ground, and I think not mixing the top 8 is the way to do it.
(OK, now tell me why my idea is flawed

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