EDIT: Was making this post for a while.
24-27 Point Decks
21-23 Point Decks
Things I noticed from the first list:
* Hatto's Blue-White Midrange runs Gisela and Bruna in the sideboard.
* Every deck with 27 points is W/U
* Anderson's Jeskai Control runs 1x Chandra, Flamecaller (Oath of the Gatewatch) in the sideboard.
* Eliatamby's Bant Midrange runs 4x Fairgrounds Wardens mainboard.
* McLaren's Red-Green Energy runs 2x Chandra, Torch of Defiance mainboard, and Root Out and Commencement of Festivities in the sideboard.
* Miani's Black-Red Aggro runs 4x Bomat Courier mainboard. I was worried it wouldn't return at all.
* Noorlander's Temur Aetherworks runs 2x Chandra, Flamecaller mainboard.
* Takao's Sultai Midrange runs 1x Nissa, Vital Force mainbaord.
Second list:
* Betesh's Temur Emerge runs 2x Kiora mainboard.
* Budde's Red-White Vehicles runs 1x Magmatic Chasm sideboard. I forgot that was still in Standard.
* Campanino's Red-White Humans runs 4x Hanweir Garrison and 1x Hanweir Battlements mainboard, and 2x Repel the Abominable sideboard.
* Chew's Temur Energy runs 3x Woodland Wanderer.
* I suppose Red-White Humans decks in general use both Hanweir cards.
* Enevoldsen's White-Black Aggro runs 4x Aerial Responder and 2x Stitcher's Graft mainboard.
* Floch's Jund Delirium runs 1x Noxious Gearhulk and 1x Arborback Stomper in the sideboard.
* Lim's Grixis Emerge runs 3x Minister of Inquiries mainboard (for self-mill, presumably).
* Lingelbach's Black-Red Madness runs 1x Asylum Visitor mainboard.