Wouldn't Alexander II be Russia at it's height?

I'm not saying it because freeing the Serfs and intending to convert into a constitutional monarchy is more appealing than the absolutists but under Alexander II there was more food surplus than usual, Iron exports were high, the Russians had Eastern Europe effectively (but temporarily) subdued, the British and French were in fear over the Crimea and Russian ambitions in the East, and Alexander II was the counter weight to the threat of British and French intervention in the civil war.

Then of course there is the USSR which needs no explanation.