I like and own all of these albums, great choices!
I also prefer PF's urban tracks, but nonetheless Roman Reloaded offered good music and I had a lot of fun jamming to it. Sadly it got old pretty soon, nonetheless I still like it. It also didn't hurt my image of her

The Truth About Love is fantastic! You are right, though, those two duets weren't really adding anything important to the whole record, but there are enough fantastic tracks to make up for that

Wasn't really a fan of Bionic, it had some tracks I liked, but most of them were kinda... mehh to me. I already own her discography, though and you are absolutely right. Once you get used to her way of singing, it's great. Although she's doesn't need to prove anything anymore I wish this album would have been more successful.
Great choices, I can't wait for your Top3
