-With the latest update definitely gold. With the unlimited videos for battles, but generally lower loot it takes a lot of battles to get 3M+ for an upgrade.
-I noticed that as long as I take care of the gold the medals for the tournaments take care of themselves from the sheer number of battles. Sorry about rubbing it in if you are a win user. Also Top100 25% boost helps a lot.
-Unless I am in an adventurous mood I try to go for 400 or less medals as 450+ usually indicates a very tough base.
-Start with the favourites list, but then naturally get stopped by 3 attacks/hour limitation. Then mostly use paid matchmaking these days as the ‘always online trick’ does not work so well anymore. And the 750K gold shield makes it possible to always have some spare change for that.
-At higher levels tournament list is quite useless as everyone is generally way lower than you.
-Mostly try to avoid bases with ogres as the primary troop as they annoy me a lot.
-Trophies are always equilibrated by the defense so hardly any need to care about those.