This thread has died so I figure I'll brighten it back up again. My first world was W9, W10, W11 and W12. At the time I didn't realise how much involvement this game required, I got rimmed on W9 within a month, quit W11 because I still hadn't realised that axes were offensive units, not defensive units (who wouldn't want an axe instead of a sword?!) and W12 I got rimmed because I thought I'd try a resources > troops strategy... did not work out.
W10 after learning the hard way on eevry other world I actually did surprisingly well, now I'm in BORG and just sort of chilling atm.