I went through the Magic-League trial that was held on 4/30 and did a breakdown of all the decks. Archetypes in order of top finish:
UW Reveillark: 6-0, 2-1, 0-1, 0-1, 0-1, 0-1, 0-1, 0-1
GW ManaRamp: 5-1, 1-1, 0-1
GRW ManaRamp/Combo: 4-1
UB Mannequin: 4-1
Doran: 3-1, 1-1, 1-1, 0-1, 0-1
GW Aggro: 3-1, 2-1, 2-1, 1-1, 0-1, 0-1, 0-1, 0-1
UW Merfolk: 3-0
Gb Tokens: 3-1, 3-1, 1-1
Monowhite Control: 2-1, 0-1
UB Faeries: 2-1, 2-0, 1-0
Rg Aggro: 2-1, 1-1, 1-1, 0-1, 0-1
Seismic Swans: 2-0
Dragonstorm: 2-1
MonoR Storm: 2-1
BG Goodstuff/Elves: 2-0, 1-1, 0-1
BR LD: 1-1
BG Grave Pact Tokens: 1-1
Monogreen Fatties: 1-1
GRW Kavu Justice: 1-1, 0-1, 0-1
Doran+Combo: 1-1
Monoblack Control: 1-1, 0-1
GBu Big Mannequin: 1-0
Monored Aggro/Burn: 1-1, 1-1, 0-1, 0-1, 0-1, 0-1, 0-1, 0-1, 0-1
RG ManaRamp: 1-1, 0-1, 0-1
MonoW Kithkin: 1-1
MonoR Snow Control: 1-1
MonoU Merfolk: 1-1, 0-1, 0-1, 0-1
Dralnu: 0-1
RG(w) Warriors: 0-1, 0-1, 0-1
BR…Draft deck?: 0-1
MonoU Pickles: 0-1, 0-1
Enchanted Evening: 0-1
RWU Angelfire: 0-1
UGr Control: 0-1
The decks can be found here: http://www.magic-league.com/tournament/info.php?id=42261&view=decks&page=1
A few notes:
-The Tier 1 decks look like MonoRed, GW Aggro, and Reveillark. RG Aggro, Doran, and Merfolk appear to be the Tier 2 for now.
-UW Reveillark has been pretty successful lately due to an increased aggro, especially green, presence.
-Green seems to be the best color right now
-Everyone seems ready for Red; MonoRed hasn't posted any strong finishes yet. Rg Aggro has had some success, but it was pretty flat today too. The best finish for either archetype was 2-1. Their combined winning percentage was .300.
-Faeries and RG Manaramp have died a bit, though 3 players played each one. None were especially successful.
-WTF, UB Mannequin?
-There's a cute little combo with Juniper Order Ranger and Persist guys. Two players built decks with this. One added Red for Gargadon, Siege-Gang, and Brion Stoutarm, and went 4-1. The other added black for Nantuko Husk and other stuff, and went 1-1.
-Keep in mind this was a single elimination tournament, so results may be skewed. This is of course also a fairly small sample, and the metagame is still forming, so feel free to take this with a fairly large grain of salt.
This was my favorite deck, though it's not really new:
//NAME: GBu Big Manneqin - PV - 1-0, drop
1 Sunken Ruins
4 Vivid Grove
4 River of Tears
1 Frost Marsh
4 Llanowar Wastes
1 Snow-Covered Swamp
1 Snow-Covered Island
4 Snow-Covered Forest
2 Reflecting Pool
1 Yavimaya Coast
1 Mouth of Ronom
4 Wall of Roots
3 Shriekmaw
4 Mulldrifter
4 Tarmogoyf
3 Cloudthresher
4 Kitchen Finks
2 Murderous Redcap
2 Primal Command
4 Makeshift Mannequin
3 Into the North
3 Thoughtseize
// Sideboard:
SB: 1 Primal Command
SB: 1 Cloudthresher
SB: 1 Thoughtseize
SB: 3 Extirpate
SB: 2 Guttural Response
SB: 2 Negate
SB: 3 Terror
SB: 2 Deathmark (I'd like more since Doran is pretty popular)