Ecofarm rather doesn't like early units / fast rushes as far as i know.
That why i belive he didn't put in anything low-tier. Thats why pyre Zombies / Rathas and the like dont appear i guess... So dont look for them.
Otherwise copper Warriors win hands down. Along with Hippus Horsemen, Svart hunters and fast Axemen / Swordsmen for a civ with Enchantment Mana or special powers (like Pyre Zombies)

but are they really that fun...?
Problem though is when you don't play on 1 landmass (or with separate areas like with creation which i do play very often) or on very large maps in difficulties above emperor on normal speed or quick speed that is not all so much hot anymore.
(AI might not be able to handle the naval part very well right now. But you better brace yourselves for the day it will, some day soon. I have lots of confidence, that the FFH-Team will code some solid Naval-AI.)
While i don't agree fully on ignoring early powerhouses completely (at least for a list that compares powerful units, beeing a builder myself and neglecting early military for mid/late-game powerhouses most of the time) I also like the powerful Tier 3 and 4 options that set FFH 2 appart from Vannilla / non-fantasy-mods. Since early rush is so obviously powerful its not worth to list it explicitly.
@ Ecofarm: Mounted Line might not contain lots of top units and flashy fun to play with tools but up to war chariots its a solid line overall for military power and some interesting economic options (tech-trading beeing the most important but not the only one) not least for the ride with its whopping +10 XP bonus. (together with a hippodrome from the same tech Level 5 Units out of the box are not all that hard to achive. And then they are truly scary + earlier than most other top-units.) Also with a bit of luck War-Elephants are available and they do pack a fearsome punch on par with a good Tier 3 Unit at a time of early Tier 2 for other civs. Thats what earns the mounted line its fair place in the game (even for non-mounted focus civs like Hippus or Kuoritates.). + Catching a Zoo early is a fun mechanic.

(At least for single-player)
@ charleswatkins: Fawns/Satyrs are the replacement of elven archers and they seem much more powerful / interesting to me. Also back then Priests (which had been one of the optional upgrades if i don't misrecollect) were far less powerful so the options seemed nice but don't really compare to 9/4 animal-dominating city attackers speeding through any terrain that is forested.
Even though i have to agree that at that place in the tech-tree they were an interesting use of archery units that did have a use.