I totally agree, but there are some issues that maybe need some more thought:
-"Spear 111 hp for some civ but 100 for other, no sense": I don't see a problem with this, it could be some civ equipment characteristic. Maybe it would be nice to specify why exactly.
-"cata too much hp", "catas too op": it has been said that the whole siege stuff is messed up, and that engines were capturable at some point. I've argued that civs should be able to capture/use them after building the Arsenal.
-"héroe OP": it has been argued that the unit represents the whole retinue, which would be composed of the most elite warriors (most units would actually represent a bunch of them).
-"champ cav is nonsensically fast", "naked fana has capture speed of a champ despite not having any of the drawbacks of a regular champ": it doesn't seem ideal to have units banned from games (and people whining about if they are being produced or not). Can't champion cavalry be more expensive, and naked fanatics have less resistance, for example? Or whatever that doesn't give an unfair advantage, without making things bland. Personally I don't care about unbalanced factions, but plenty of people here are too obsessed with MP, so there's that.
-"palisades are useless,but when spammed are somewhat annoying": I'm not a fan of the "territory" stuff, but given that's there, I don't get why palisades can be built outside of it, doesn't this just enhance spamming? It doesn't make much sense to build palisades in the middle of nowhere, considering that they needed maintenance (the wood would rot). On the other hand, making them a bit stronger but weaker against siege would make them useful in the early game and not annoying later. Maybe civs that have weak siege should have other advantages, like fire units, if even. Also, Towers should be able to be built just besides Palisades (while pressing CTRL), Walls don't have this problem. Ideally, but more radically (and needing new animations), Palisades and Walls should be strong but not very useful if not supported: some units could be able to slowly climb over them, but have extremely reduced resistance when doing so, making Palisades and Walls quite useful when combined with Towers or ranged units.