I love both LOG and BIA tours equally.
No, Alchemy doesn't sound naive. It was more sober, with less cheesy synths. OUATITW is wonderful, TR is strong and emotional, Sultans is best without sax and strong guitar. TOL, although more straightforward than in 85, was still great, with longer sax intro.
The BIA tour has cheesy keyboards, is too 80...but so energetic. BIA was so strong in 85 (but not 86). MFN so powerful. TOL and Sultans so bad ass.
All DS tours were great, each in its own sweet way. I don't think one was better than the other. Just different arrangements. If you are in a "less is more" mood, '79 is perfect. If you are in "over the top" mood, BIA and OES tours rule. If you are in a reasonable mood, Alchemy is the way to go!