I am an Indian citizen with following stats:
* Working on H1B visa
* EAD & AP however not using it still on job using H1B

I left for India on Nov'21 2011 after, I am currently out of country (in India). Recently my 485 got approved on Jan'9th.
But have not got the green card yet. I plan to return to USA on Jan'27th.
My friend mailed me the 485 approval.

How should I renter the country:
1. Use H1B visa & show them I485 approval if required
2. Use AP to enter & show them I485 if required
3. Somehow use my 485 to enter
4. Any other method to be used