I dislike "Hot as Ice" and it's one of my least favourites of Britney. I always skip it when I listen to "Blackout", I think it's freaking annoying and the whole production (that video game thingy) is not my cup of tea at all.
Apart from "Gasoline", there are no big losses so far if you ask me. "E-Mail My Heart" is my guilty pleasure, though. I think it's a bit underrated among fans. Also it gaves us Britney's iconic comment on "Everybody's doing E-Mails" <3
Oh, I love "Hold On Tight", the ballads are the only thing why I would ever go back to "Britney Jean". I have to admit that I often forget about the song's existence aka I don't go back intentionally to listen to it but it's a real pearl in her discography: Authentic, honest, hauntingly beautiful. I should listen to it more often (but seriously, I don't want to push my "Britney Jean" scrobbles on last.fm any further haha).
I did a ranking with Noahh two years ago, that's why it's very difficult for me to say anything about the "Glory" tracks. I still have troubles to rank them because I think they need to stand the test of time but tbh, I really enjoy "What You Need", I think that it's a bit samey in the end but her attitude is on fire and I love what she tried to create but I can see why someone places it #131.
Harsh words on "Big Fat Bass". I started to love it less because of will.i.am having killed "Britney Jean" but BFB is quite good, especially the middle 8 part when the beat drops. Definitely one of his best producitions so far. It doesn't deserve to be underrated
I agree on "Alien". The song was very promising and I love the meaning of the track, the melody but the glitch makes me hate it. Seriously, it's outrageous that her team didn't provide a free download of a new, glitch-free version of the song after "Britney Jean" got released.
I HATE "Everbody". Perhaps my least Britney track together with "Clumsy", "Don't Hang Up", "Hot as Ice" and "Rock Boy", glad to see it that low!
I also agree on "Seal It With a Kiss". I couldn't turn into a fan of this song over the years either. Tbh, I think it's the only true filler on the record.