This is a work in progress. Some of these i've mentioned, some i haven't.

Please suggest things that (you think) should be here.

Possible Top 10 contenders (alpha order):

• Björk: Volta (electronic)
  
• Black Moth Super Rainbow: Dandelion Gum (electronic psychedelia)
  
• Chromeo: Fancy Footwork (electrofunk)
  
• Dizzee Rascal: Maths + English (hip-hop)
  
• Calvin Harris: I Created Disco (electronic)
  
• Justice: † (electro)
  
• M.I.A.: Kala (electronic)
  
• Opeth: The Roundhouse Tapes (prog/death metal)
  
• Ruth Ann: What About Us? (downtempo electronic)
• Scorn: Stealth (dubstep)
• Teenage Bad Girl: Cocotte (electro)
• Timbaland: Shock Value (hip hop)
  
• Venetian Snares: My Downfall (Original Soundtrack) (electronic)
• Yelle: Pop-Up (electro)
  
• Wiley: Playtime Is Over (grime)
  
• Various Artists: Dubstep Drama: The Official Soundtrack to Dubplate Drama Series 2 (dubstep)
  

The next group (particularly like but not top 10 material):

• Black Devil Disco Club: In Dub (disco)
  
• Boys Noize: Oi Oi Oi (electro)
• Flight of the Conchords: The Distant Future (comedic folk)
  
• µ-ziq: Duntisbourne Abbots Soulmate Devastation Technique (idm)
  
• The Pirate Ship Quintet: The Pirate Ship Quintet (post rock)
  
• pg.lost: Yes I Am (post rock)
• Rechenzentrum: Silence (minimal, glitch)
  
• Ruckus Roboticus: Playing with Scratches (hip hop)
  
• Saul Williams: The Inevitable Rise and Liberation of NiggyTardust! (industrial/hip-hop?)
  

More i liked:

• Buckethead: various (mostly avant metal)
• JPLS: Twilite (minimal techno)
• Priestbird: Season of the Sun (rock)
  
• St. Vincent: Marry Me (indie rock)
• Ween: La Cucaracha (rock)
  

Still to check out:

• Goose: Bring It On
  
• Shin.e: Lightyears

Yeah.