In France
Go count me the radio interviews she did this era.

It's also about finding out how many people can read and understand. (Many can't understand what they read)

This message is not directed to you. (No offense intended). I only felt I needed to add my POV.

I like how hard you go sis.

Well, maybe that promo for you (Beyonce fans) was little. You should be thankful she promotes. She did 10x of what Britney has done in 2011, which is great for you, but it sucks for us, Britney fans, because our idol doesn't promote a lot.
Anyway, the 4 era is better than the Blackout era, because it had more and lasted more.
Blackout is still my favourite album though.

Blackout, just because it's Britney.

Blackout

Simple, 4. Beyoncé performed with a baby bump to promote her album.

Neither will be the respective girl's highlight era, but at least the 4 era semi-existed for a while. Let's not forget about how killer the performances were. She gets my vote.

Calm your ****
And it just happened in the middle of the era, wich gave her lots of hype surrounding her, i was just joking, gosh i love Beyoncé

Blackout didn't have much of an era though

Blackout. The "It's Britney Bitch" line from Gimme More has become a catch phrase in pop culture, the song being top 3 in the Billboard Hot 100, the 2007 VMAs performance just helped to make people become more interested in her (which was bad for her situation at that time but good for the album's promotion), the POM video was epic and won all 3 categories it was nominated in on the 2008 VMAs, the album has been considered the most influential pop album during late 2000s (2005 onwards), it debuted at #2 in Billboard 200 (even though it was set to debut at #1 and set the record of five consecutive albums to top the chart, it was still awesome considering it was expected to flop hard) and all that just makes it an era of success for Britney, and all that with no promotion (just 1 performance and a radio interview). That proves Britney is a LEGEND, and shows how she could manage to have a successful era with no promo and a messy life, those other girls could never.

Blackout

4

4 Won?? *Dies*

Probably my least favourite eras from both artists, but I have a stronger preference for Blackout.

Wrong Poll Hun