so which kind of game do you like the most?
I am a big fan o FFA games - I think they're the essence of Warlords. I know that a lot of good players doesn't like to play it. The reason is simple - in FFA there's a lot of randomness and chance involved, and even the best player can suffer a terrible defeat. but that's what I like about it - you may be a great player, but if everyone teams against you you have no chance. vert often if you get ahead of everybody, the rest joins their forces to get you down. this is the most exciting part of the game, when your empire is on the verge of fall, but you still has some chance to win. enemies' armies are surrounding you from three or four sides. if only you could win this castle... great feeling... so there's this strategy to be the second best and to invest in powerful stacks rather than in a lot of castles, and armies... and then when everyone joins against the strongest one and his empire is ripped apart, you will benefit the most.
the other thing is diplomacy. you have to convince everyone that you dont pose any threat to them and handle your NAPs wisely. you dont want to have an NAP with everybody, because you will not have anyone to fight with (the best way is to fight one or two at the time). in FFA everyone should always fight the strongest one. in ideal case the game would never end, but players make mistakes, and very often change their allies and strategies too late. that's when you step in - and till they realize that you have become the most powerful, you are strong enough to fight them all at the same time...