1989 and 25 are undeniably the two biggest eras of this decade but which one is bigger

US: 1989
WW: 25

I know 1989 sold less in the U.S., but its multiple hits make up for that.

25 (but wtf did you forget 21?)

1989 because of the singles.

21

21 / 25

21 (2011) was bigger than both

25 by far ! Selling 20 million copies of an album will always be more impressive than 10 million with some hits
ATRL and their delusional fanfiction about singles success being as important as album sales

Teenage Dream (67 million records) > 21 (66 million records) > 1989 (37 million records) > 25 (34 million records)

1989 by huge margin. At least for me

So according to you, TD is bigger than 21.....

"1989" was probably bigger for pop culture etc. but "25" is undeniably the bigger era.

That deleted comment

Gurl 21 is from this decade

We've done this before.
I guess i can see 1989 getting the edge in US thanks to its singles.
But WW it's clearly 25

The OP is comparing 25 with 1989, not saying which is the biggest album of ALL this decade since everyone knows it's 21
Edit: opps he said "those are the biggest eras of the decade" so yeah, drag the OP

Poor Taylor... Adele always win by default

1989.