Getting all those WHILE being stuck in war @ Immortal is extremely impressive, to me anyway. I have great trouble not getting swarmed to the point of having to build only military for the first while @ Immortal, resulting in me falling behind in science, culture, etc. due to being unable to work on wonders.
That alone is a win IMHO.
I kept playing, though since it was my first Immortal game, I backed up and reloaded a save 3 turns earlier to keep from losing my city. I had the forces and resources to defend it, they just happened to be in the wrong places when he launched his invasion. It's cheap, I know, but I just didn't want to deal with the tedium of getting it back, much less lose every culture building in the city when I'm going for a culture win.
After I fended him off, Babylon invaded again. Babylon itself was right on my border, so I used my Rationalism and Porcelain Tower-boosted RAs to get riflemen and then went on the offensive. I didn't realize he had the Kremlin, so sacking it was harder than I thought. The economic boost once I finally got past its 14 turns of resistance really carried me into the modern era.
I've kept my head down as the game began to revolve around three run-away civs, one of them Persia right on my border. If they'd turned on me while I focused on catching up in tech, then there would have been nothing left for me to do. I managed to get the Louvre, Cristo Redentor, and the Sydney Opera House, but Eiffel Tower and Pentagon got away from me. I knew I'd never get Statue of Liberty since the AI always goes after that one.
Now I'm just watching the clock. I've unlocked Patronage and almost finished it off. I've just got Freedom to go, but I'm nervous somebody's going to finish a spaceship before I can go Utopian. I think I'm safe for a UN vote as I've got almost all the CSs I've met in my corner. I'm going to try it while still pumping out culture.
All in all, Immortal isn't that bad. If I hadn't been on a reckless, even foolhardy quest for wonders then I would've been better prepared for the early rush. (They would've been less willing to invade if I'd had a better army anyway.) Once I'd put Rome, Siam, and Babylon in their places, the game's been pretty peaceful. Still, I feel cheap for reloading and it bites at me knowing that it was only Persia's mercy that allowed me to survive several dozen turns. (I could survive them now, but it would cost me dearly.)
I've got a hankering to win on Deity now and maybe then I'll finally be done with the game...yeah, right.