bestbrian what options are you playing on? I find Emperor extrememely difficult with Barbarian Civ + Barbarian World, and Start as Minors on. It's so hard to survive the early rushes. What do you do when you don't start near copper for example?
I've been very lucky my last two LoR Emperor games, in that the starts suited my preferred style of play, and were highly advantageous. These were on PerfectWorld maps, Marathon/Large, Raging Barbs, Start as Minors, btw. Both games I began with peninsular coastal starts (the first as Hannibal, the second as Pericles). Both had nearby sites with high immediate commerce potential (gems and gold). Neither had Copper within the first 6 city sites in the Pericles game (I don't recall the Hannibal game), but Iron was handy, and Stone was to be had in both (the first immediately as I moved to settle on a Stone Hill, the second was in the cross of my second or third city).
The Peninsular starts led to a smaller front to defend from Barbs, while the bonus commerce led to faster teching (faster with lots of seafood resources and Hannibal's FIN and Mining as a starting tech). In each case I eventually got the Great Wall up, which put an end to the Barb problem. Minor Civs, OTH, still proved to be a pain. The problem comes in balancing expansion / teching / military. LoR requires more emphasis on early game military than I'm used to, which slows city improvements. It also alters the tech progression a bit, as in both games I Oracle'd Machinery in the BCs, just to have a major military advantage to maintain expansion. Btw, Legio X is the most awesome of the Legends units for this. In a small empire, that 3 moves plus Moblity and Blitz, lets it cover alot of ground, and counter just about anything that strays over the borders. Aside from that, I played a pretty standard Emperor game (maximize commerce bonuses, get Libraries up ASAP, use Science Specialists / Research to maintain positive tech advancement, try to have about 6 to 9 cities by 0 AD, etc).
The AI seems to be hampered by these settings more than the human; they spend alot of time flailing at each other. I've had it happen a few times that I found myself blocked off by the AI, spent some time rebuilding my economy, and then just expanded again when the AI's blocking city got razed by someone or other. It often seems like good policy to keep a Settler just sitting around to take advantage of such things.
The game I'm planning on playing next will be very different as it involves an Arboria map, where I'm pretty much dead center of the continent and surrounded by pinhead warmongers. I don't recall there being any commerce bonuses, and I don't know about Metal/Horses. The start doesn't seem to be very advantageous, will probably require an early rush, will have slow teching, and will be diplomatically trying; I think this game will provide a more accurate gauge of Emperor level LoR.