The best command decisions I made were as Germania, when a) I charged down into Italy by turn 6, and b) I fought heavily-outnumbered battles with only 4-5 Germanic phalanxes and 2 cavalry against full-stacks, in full square. It was amazing.

In my Greek campaign, my best command decision was to take the offensive in all theatres immediately and rely on my tactical abilities to gain the victory no matter the odds. I ended this campaign with 40 provinces in 30 turns.

But really, the best command decisions I make are with diplomats. As Sun Zi says, 'the greatest general is the one who wins without fighting a battle'. I'm damnedly sure my battle count is way lower than anyone elses' in a battle, because most of my 'battles' are between diplomats and enemy armies.

I still remember this Spanish battle where my 10-unit Iberian-Roundshield army was facing a Gaulish full-stack and in one flashing instant I saw the tiniest gap in the hordes that were pouring down onto my beleaguered and dying-very-fast Iberians, and I charged through it and into the Gaulish rear. Against all odds that was the battle-winner in a fight that should have been my ass on a platter to the Gauls. But it could just as easily been a gamble that ended with my precious cavalry bogged down in the infantry, ending in a defeat that would have laid Spain wide open to attack (all my armies were either headed for Carthage, or in Italy)