While we are in Organized Religion it is beneficial to whip buildings rather than units whenever possible. The huge OR bonus on a big whip is not something to miss out on!
This isn't actually true, mathematically.
What is true is that it's beneficial to have buildings in the build que in general, instead of units, for a bonus on them versus getting the building later when we don't have OR, that much is obvious. If we had plans to build 5 things straight in a city and were leaving OR sometime, it is smart to do buildings that benefit first.
But, if we have two things we're going to build anyway and don't otherwise see a change in production, it works out mostly the same though you may get minor differences in turns worked depending on what you whipped (but that depends on external factors to just build vs. unit. An expensive unit vs. cheap building, and workers/settlers can throw things off, for instance).
Example: build galley (50 iirc, anyway if I get a cost wrong it doesn't matter for this example) and then build library (90). vs. build library and then galley
So let's say 12 hammers a turn base and then 8 after a 2-pop the whip.
We build a library, that's 15 + 15 then whip for 2 pop for 60 base hammers = 75 so that finishes the library. 12 overflow (overflow hammers get reduced to base hammers then reapplied) after the library, then 5 turns on the galley.
Building a galley, say 12 then whip for 60, yields 22 overflow = 27 on library, then 7 turns at 8 => 10 production.
After 9 turns:
Whipping building: library and galley built, 10 base hammers into next thing
Whipping galley: galley and library built, 5 base hammers into next thing
The building does come out slightly ahead in this case and it would make sense to get the library research here too, but not by too much, and part of that is me not working out other bonuses (like a forge) and actually regrowing from a whip, for instance.
The main point is that both ways you get roughly the same base hammers = hammers built each turn + hammers from whips. You do of course see a difference in what was built first at what time if that matters either way.
A better example, not of whipping, but more easily understood is forest chopping. Say you need to build a library and then the Great Library with marble. You could chop 3 forests to finish the library immediately and then by regular production work on the GL, or build the library first with no chops and then put the chops on the GL for an "extra 100%" hammers. But it's actually not anything like a massive boost that way, you get the GL at roughly the same either way, that one is easy to work out yourself.
By putting more buildings in the build queue, then yes you get more total effective hammers. But if your build queue is set, whipping the unit or building works out closer to the same, not enough to fret over I think.
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But to really discuss things at hand - I like Quatron for military I think, can't hurt. Resonance is an obvious call to just get another defender or two, it does have the barracks, and we can time whipping nicely with sharing tiles with Cygnus, who can also whip basic stuff like Granary sometime soon enough. I would settle one more city after Continuum as things stand right now, and that would be the 4th city on our island, so no need for more settlers after that though one more worker isn't going to hurt sometime down the line.