Nemesis Strike Force, Grey Knights – 1134
HQ
Librarian – 160 (Warlord)
*Upgrades: PML3, Domina Liber Daemonica
Librarian – 150
*Upgrades: PML3, Hammer, Bone Shard of Solar
TROOPS
Grey Knight Strike Squad, 1 Justicar, 4 Knights – 119
*Upgrades: 2 halberds (Justicar), incinerator
HEAVY
Nemesis Dreadknight – 225
*Upgrades: Heavy Incinerator, Heavy Psycannon, Greatsword, Personal Teleporter
Nemesis Dreadknight – 235
*Upgrades: Gatling Psilencer, Heavy Psycannon, Greatsword, Personal Teleporter
LOW
Kaldor Draigo – 245

Allied Detachment, Cult Mechanicus – 370
HQ
Tech-priest Dominus – 140
*Upgrades: Raiment of the Technomartyr, Conversion Field
TROOPS
Kataphron Destroyers, 4 Destroyers – 230
*Upgrades: 4 Grav-cannons, 2 cognis flamers

Combined Arms Detachment, Eldar Craftworlds – 346
HQ
Autarch – 103
*Upgrades: Swooping Hawk Wings, Banshee mask, Fusion gun, Scorpion Chainsword
TROOPS
Windriders – 81
*Upgrades: 3 Scatter lasers
Windriders – 81
*Upgrades: 3 Scatter lasers
Windriders – 81
*Upgrades: 3 Scatter lasers

So I always kept Libbys and Draigo together. In most games I'd put them with the servitors and have a nice little star that deleted a unit a turn. Twice, though, I got the "T1 DS reroll scatter" trait, and I put those three ICs with the Strike Squad, with some interesting results I'll tell you about in a minute.
The Libbys: DLD rolls on Sanctic until I get Sanctuary, and maybe Cleansing Flame. Vortex is also nice for a threat bubble (D vortex scares some people into making bad decisions), but I literally never use it. The other Libby goes on Divination for Forewarning, Perfect Timing, and Prescience. Precognition is a good situational touch. The Bone Shard almost never comes in handy, but when there ARE Daemon monsters having two 2++ instead of just one is very handy.
A lot of people ask me about the Psilencer on the one NDK. They think it's not worth it, that an incinerator is better, that two guns is too much, etc etc. That psilencer, though, is key against a variety of builds. Screamer Star, Hound Star, Bark Star, Iron Hands FnP Star, and MCs of all types (other NDKs, Tyranid bugs, Daemon monsters, DE monsters), all it takes is a single failed save, which is worth the Force casting and the 30pts.
I do like the incinerator on the other, to shunt/burn Tau infantry or anything with a silly cover save (Nurglings, Skitarii, SM Scouts).

Grav speaks for itself. I prefer Servitors over Centurions for two reasons: more shots for significantly cheaper price and allows the unit to Sweep.

The Eldar replaced two Inquisitors: Coteaz and Rad Grendaes. While the Inquisition was more fluffy and made my Death Star ridiculously unkillable, I lacked board control and Maelstrom ability.
Eldar jetbikes are fast enough to get to objectives, and ObSec makes them easily able to deny enemy objectives. I'm still learning how to use them, but in 4/6 games at Vegas they won me the game. The list is MUCH stronger with them than without them.

1.First game was against War Con with inquisitors and Culexus. I got mostly obliterated, but Bikes scored me tons of Maelstrom objectives, we tied on Emperor's Will, and I won 8-3. I didn't kill the Knight, but a good Gate and Cleansing killed all the Skitarii by turn 2!
2.Second game was against my worst matchup: Baronial Court. I got tabelled, which didn't surprise me, but I managed to remove 18/30 HPs from the buggers, so that felt good. An unlucky save against HoW meant that I only killed one instead of two Knights, but oh well.
3.Game three was against WS Battle Company with Purge the Alien. There were SOOOO many kill points--I think I got 10KPs from transports alone. I definitely won the Purge, and lost the Maelstrom, and we ended up tying. He was pretty salty and not a fun opponent. He did not like my bikes at all, which for a guy with free transports was, I thought, a petty thing to complain about.
4.Game four was against Daemons. I don't get to play Daemons often, but I love doing it for the thematic element: it's my purpose as a Daemonhunter! He had Oracles (two LoC and Fatey), a CAD (four Brims and 9 Screamers) and Anarchic (four Tzeralds on discs). He was afraid of the Psilencer and scats, and so castled up out of LoS in a corner. Fortunately for me he gave me T1 and I got the DS trait, and I took a big gamble--I went for the corner! Well, he fell for the trap and charged in the Warlord LoC and the whole Screamer Star. I had Force up, so that was a very poor decision on his part, but he had got Cursed Earth and Grimoire, so I think he felt good about his chances. It didn't go well for him--he lost the Lord and the whole Star (9 Screamers and 4 Tzeralds) bottom of T1--the Lord to Force and the Screamers mostly to Instability. Top of T2 I charged the newly summoned Fiends, a Nurgerald, and some Brims and killed them all. The rest of the game was mopping up. Massive victory for the Inquisition over the forces of darkness
5.Game five was against another GK player! Unexpected and fun matchup, but the player was pretty intense. She was really into her ITC standing and thought she could get ITC Best GK by the end of LVO, so she was really set to waac. Her list was Skyhammer with mostly melta, naked Libby with 5 Termies, 2NDKs, and 3x3 DA bikes with a Libby. She reserved everything except the DA bikes and gave me T1. I put the bikes on the table and the Star, but left the NDKs in reserve bc I feared the DP grav/melta. I killed 8/10 bikes on T1, even with their crazy Jinking. She was very upset, but Perfect Timing grav was just too devastating. One NDK came in T1 and I used it to hold an objective, since there wasn't much else going on. Her Skyhammer was not very effective--she killed my NDK, but didn't touch the Star, which I considered an acceptable loss. It was a very quick game even though we made it to T6, and I tabelled her. She was insistent, even after recounting the Maelstrom points, that she had won on Maelstrom, but I firmly and repeatedly pointed out that not only did I win Big Guns (8 Heavy Support points in my favour, to her 1), I had got 9 Maelstrom to her 7. So it was a definite win for my GK build over hers. And considering her ITC standing (which is reasonably high), I feel really good about calling myself a top GK player, even if I don't get to as many events as I wish I could.
6. Game six was Daemons again, a nearly identical build to game 4. It was a very up and down game, definitely the best and most exciting of the tournament, and he was a canny and experienced opponent. But I eeked out a 7-6 win, and that was that!