Probably far too late to answer, but I'd say, the three I’d probably go for are from round the same period as Blackout,
Love at First Sting – obviously has their signature song, Rock You Like A Hurricane, along with stellar tracks, Bad Boys Running Wild & Big City Nights, while the ballad, Still Loving You is in there also.
Lovedrive has some great stuff, I really like the instrumental, Coast to Coast, along with the songs, Another Piece of Meat, & Can’t Get Enough. While the title track rips off the theme tune to the A-Team – or maybe it was the other way round ...
Animal Magnetism is worth getting for, The Zoo, alone, immense track.