First of all, there’s been some discussion about Africa on the Spielfrieks list. The best thing the discussion brought up is this analysis by Peter Wiles (through Defective Yeti Yahoo! groups filter). Read and be amazed, how well Doktor Knizia has balanced the game.
Puerto Rico has been another hot topic lately, with the new dedicated Yahoo! group Spielfrieks Puerto Rico. I’ve been reading the strategy discussion with much interest. I need to play more!
Which is, I think, a definite sign of a master’s work. There’s no doubt Puerto Rico is A Very Good Game.