In no particular order, assuming 5 singles, because 6 is unrealistic (no offense). I think she should have opened the era with DL. CB is very much "Carrie", which isn't bad, but also wouldn't have showcased the new sound. I think DL would have showcased the new sound, without being too different. The subject is familiar, but the production is so cool.
1.Church Bells
2.Dirty Laundry
3.Choctaw County Affair
4.Like I'll Never Love You Again (Because we never got SWISLY or WAW and the Love Junkies are very popular)
5.Heartbeat (I prefer Chaser, but I don't know that it works on country radio)
This mix of singles shows off the new "twangy" experimental sound (DL/CCA), has some "classic" Carrie (CB), ventures into the new R&B trend (HB), and shows off her beautiful traditional country sound like LAM, SWISLY, ITYS, and WAW (LINLYA). It's the perfect mix, in my humble opinion. My bonus 6th single would be Chaser, just for a blatant power ballad, but I do think it might be too much for country radio.