Quote Originally Posted by IrishArmenian
What if the faction can build a horse-breeders guild?
This is taken into account:
Faction is Muslim, Spain, Portugal, or Denmark: Add 0.5 to TotalCharge, Attack, and TotalDefense
These are the only factions that can get HB's guilds early on.

Quote Originally Posted by Whacker
it might be worthwhile considering considering where these units show up in terms of availability based on the tech tree. A high "value" unit on that list may not be as worthwhile if it only shows up at tier 5 in a city.
This thread is mostly about performance/price which is independent of availability.

Discussion about the "best" units belongs in another thread.