Pandora's rank in DC cosmic hierarchy?

im thinking just below lucifer, michael and synnar.

We'll know soon enough. She'll have her own series and the writer will expand on her abilities.

^i doubt she'll have any feat better than what she did in flashpoint #5.

Merging three timelines with the help of Barry Allen was pretty uber.

yep, and those three timelines were Vertigo, wildstorm and DC, im pretty sure you know that, im just pointing it out to those who don't.

I wonder how much Barry helped and HOW. I don't think it was ever explained.

You're right, it was never explained in the issue itself.