Apart from Halo and Broken Hearted Girl, the I Am... side of IASF puts me to sleep. The Sasha Fierce side ***** on my life though... except for ratchet ass Video Phone.
But Smash Into You and Hello on the deluxe >>>>>>>>>>>>>>>>
I started to stan for Brit in the middle of Circus. A flawless album, all tracks are great. If You Seek Amy was my obsession. IASF is good too, but Circus is better imo.
Circus was the album that made me a Britney fan. It definitely had to do with the timing of my life as opposed to the actual album, but there is a special place in my heart for Circus. I've got to go with that.