first off, let us get this straight, there are some differing orders of songs, with different releases, interesting; but it doesn't affect each individual song; but....
"Wake up and Live ya", as another eloquently noted, is the opening of this album ("opening clarion call"). It sets a tempo for this album, could be very good for the ending too, as this edition we look at has it finishing up the order (before the bonus track). "Coming in from the cold", plays a similar role on "Uprising", somehow, a similar message; refrains.
Difficult to rank these songs, you have my maybe two favorites then most everything is tied for third; in order of my favorites, because most every song is excellent excepting the likes of say, "so much trouble in the world" or "natty dread rides again (ride natty ride)", some may find these songs very likeable, but they miss for me. The latter seeming overdone in concept.
One drop, I know Bob's music fairly extensively, this is in my 10 top favorite songs, if not in the top 5.
Africa Unite , the instruments and Bob's melodic vocal contributions (not words, the "la-la" rhythms) make this A-1 besides it message.
Most Memorable; for me, is "Top Rankin" with one of those clever lines one remembers, mention the album "Survival" to me, and I think of "Top Rankin' Top Rankin' Are You Skankin' (Skankin')"
Zimbabwe, this is likewise, very memorable to the memory, about what was the former country of Rhodesia.
After these songs, all are excellent on an almost equal basis; probably no sense in rehashing what other reviewers have said.