1850 points tournament list army choice help

I have a tournament coming up and can not decide on which list to take and any changes needed. Any help would be grateful.

DARK ELDAR
Razorwing with 2x Dark Lances, Splinter Cannon x1, Necrotoxin Missiles x4, Night Shields and Flickerfields x3 units

Trueborn x4 with Blasters x4 in Venom with Splinter Cannons x2, Flickerfields and Night Shields x2 Units

Warriors x5 in Venoms with Splinter Cannons x2, Flickerfields and Night Shields x4

Warriors x20 with Splinter Cannons x2 joined with Duke Sliscus and a Haemonculus with Power Weapon.

OR

GREY KNIGHTS

Inquisitor Coteaz

Vindicare Assassin

Death Cult Assassins x9 in Rhino with Storm Bolters x2 x2 Units

Death Cult Assassins x10 in Rhinos with Storm Bolters x2 x4 units

Dreadnought with Twin Linked Autocannons x2 and Psybolt Ammo x3 units.

this is such a no brainer is unreal!!!!!!

take grey knights (unless ur amazingly gd with dark eldar) ill go thru both lists tho

DE
vect

elites
trueborn x4
blaster x4
venom
splinter canon

x3 units

troops
wychesx5
haywire
hekatrix /agoniser
hydra
venom
splinter canon

x2 units

wyches x9
hekatrix agonsier
haywire
hydra
raider
flicker field

FA
beast masters x5
khymerea x5
razor wings x8

Hs
ravager x3
night sheild flicker field
x3 units

GK
Hq
crowe
librarian with shrouding and sanctuary powers

elites
ven dread
auto canon x2
pys bolt ammo
x3

(OR take 2 dreads and 1 vindicare assasin hes gd for taking out landradiers)

troops
5 purifiers
pys canon
hammer
razor back
psy bolt ammo
x5

purifiers x8
psy canon
hammer

FA
storm raven
twin linked melta
las canons

if u are under points with the grey knights list throw i na dread night with great sword