Okay how about this?
- Ellyrion Reavers moved to Core and given Ilithmar Barding
Fast cavalry shouldn't have a 4+ save. I'd even make LA an option. I do agree with core placement however
- Silver Helms get a slight stat boost to justify them being a Special Choice
Why not core? They are relatively common (so no fluff reason) and cavalry armies are not as effective as they once were. I don't think there is anything wrong with having the option of non-infantry in core
- Dragon Princes to Rare (as you can't cook them in their dragon armor

)
Again, why?
- Remove SoA and replace is with the following:
I'd be tempted to simply give all three elves some sort of 'finesse' rule, which would allow them to substitute their Weaponskill for Strength (if it would be higher) when determining armour saves. So generally speaking elves aren't great at wounding, but those wounds they manage to score have a better chance of getting through armour.
Odd, but not bad. Gives a nice little bonus for spearmen. I would however make it an optional thing (i.e. the unit may substitute their WS for Strength...) or make it a comparitive thing (for every point of WS higher than the opponent, the HE player reduces their AS by one). I say this as White Lions have a better Strength than WS and it doesn't make sense that the lowly spearmen has enough finesse to get a bonus to wound against a chaos lord...
- Swordmasters have ASF
Meaning they strike at initiative? I'm assuming you mean that they are armed with a 'sword of +2 S' as opposed to a great weapon, with ASF
- White Lions Strike at initiative
Why?
- Reduce point cost of Repeater Bolt Throwers
Oh yeah
- Shadow Warriors (Composite Long Bows), Ellyrion Reavers (Composite Bow), And Lothern Sea Guard (Composite Bows): the way they work is, when fired at short range they are strength 4, if shot at long range they are the normal strength 3, all penalties still apply)
Isn't this the WE rule? Leave fluffy army rules with the armies they belong to
- Martial Prowess not only allows you to fight in one extra rank but conveys a 6+ ward save that is only used while in close combat to convey their skill at closing ranks and blocking with their shields ("Each member of the unit instinctively knows the mind of his comrades to either side and the whole regiment intuitively fights as one body. Each warrior plays his part as if their every movement was part of a carefully choreographed plan, overlapping one another and providing protection, or opening the defenses of the enemy without so much as a spoken word or a nod." Spearman fluff first paragraph 3rd sentance page 49)