Adele's swept is iconic.

Beyoncé because she won in different genres. That's a great feat.

Adele had a great night as well. She won both Record and Album of the Year.

ADELE's >>>>>>>>>>

I mean, Album of the year, Song of the year, record of the year....

ADELE.

The one who was nominated in more major and competitive categories, but kudos to both

When it comes to things like that, the genre categories are a given.
So you have to look at the major categories, and Adele did a clean sweep there

Not to be a grammer snob but it's whose*
And Adele's>>>

Not to mention that she actually did win that in a previous year

the one that actually won fairly

Before 21, Adele won Best New Artist around the 19 era.

Both!

Song of the Year
"Single Ladies (Put a Ring on It)"

this won song of the year?

.

Equal.

Bey because it was such a huge thing being the first female to achieve such a feat
Adele for being a British female matching her idols record and winning arguably the "better" categories

Queens

Oh and Bey's pic in the OP is from her record tying 5 wins in 2004 (not the 2010 night the discussion is about)

Obviously Adele, she walked away with the 3 biggest awards of the night. Beyonce's only all-genre award was shared with like 8 co-writers.

Painful

Adele, but it's close.