The 'Your Drums, Your Love' two-piece topped a chart compiled by MP3 blog aggregator The Hype Machine.
[Left: AlunaGeorge / Right: Haim]
137 music blogs formed the survey, which listed Haim in second place and Lana Del Rey in third.
AlunaGeorge and Haim feature on the BBC's Sound of 2013 longlist alongside 13 other artists including The Weeknd, Palma Violets and Savages.
AlunaGeorge have also been shortlisted for the Brits Critics' Choice Award 2013.
"Being the most blogged artist in the UK - it's just weird," George Reid told BBC 6 Music. "As you can gather, I'm slightly lost for words on that one."
Listen to AlunaGeorge's 'Your Drums, Your Love' below: