Earth 16 was origianlly named the Super-Sons Earth a little before Final Crisis. DC has recently stated that Earth 16 is the new animated Young Justice Earth. If I remember correctly, that was stated at one of this years ComicCon conventions. It is a little scary too me that they cannot seem to be able to keep track of their own multiverse better than the fans do. They should fix this. There are plenty of unused Earths floating around in the 52 that they can use for the Young Justice Universe. Or...
Maybe they are one and the same. The Superman of Earth-16 (Christopher Kent) was seen in the Countdown: Arena mini series. He was also killed in that series. It is possible that the Young Justice series also shares the Earth, but DC probably just screwed up. I beleive the original plan was to make Earth-1 like the silver age, but it was changed to the new Superman: Earth One concept to go head to head with Marvels Ultimate Universe. There is also a Batman: Earth One planned, and hopefully a follow up book for both.
Pre-Crisis Earth-One is erased. Some of the history was merged into New Earth (aka Earth-0) which is part of the newer 52 multiverse, numbered 0 through 51. This book takes place in the current Earth-1, which has no relation to the old Earth-One.
" I say the assault team. The Anti-Monitor was way more powerful than Galactus (he was then, at least) and the assault team gave the Anti-Monitor a run for his money. Well, Supergirl did. "
Keep in mind that heroes were being weakened when they fought Anti-Monitor in CoIE 7. And he cheap shotted Superman. And he was nearly killed by Supergirl. And he couldn't time travel. Yea, more powerful than Galactus fo so! The truth is, the Anti-Monitor only got significantly more powerful than Galactus because of the amps he got in CoIE 9. "
Earth 0-51, for a total of 52. There is also Earth Prime, which may or may not be part of the 52. If is not part of the 52, then there could be more Earths outside the multiverse. We have to wait to find out, I guess.
I think it is a type of exploitation, but who really cares. Marvel or any other comic company would not even make this style of book if there was not a demand for it. I think it comes down to who is easily offended and who is isn't. No one is forcing anybody to buy this or read this. There is no actual sex involved, just girls in skimpy clothes making sexy faces. Big whoop. Sex is always going to be on demand, the characters are fictional and no body is getting hurt. Even though I do not plan on buying this book, I support Marvel for putting it out. I support all forms of art even when it creates controversary.