Originally Posted by
flydrha
As a Hilton Diamond, I earn 10points per $ + additional 5 points per $ (part of Hilton choice selection) = 15 points per $ spent. So, if my hotel stay is $200, then I earn about 3000 points. Also, my Hilton Amex earns 5 points per $ hotel stay, so I would earn 5 x $200 = 1000 points. Total points = 4000 points with $200 hotel stay. I need about 25,000-35,000 points to redeem at most $150-$300 hilton hotels, including at NY Manhattan (category 3 & 4).
I'm not really an SPG expert and I'm certain others will chime in here on SPG earning. However, you neglected to add your 50% Diamond earnings bonus to your base points. Additionally, I think the "Hilton Choice" you mention is actually named "Points and Points" as a part of your "Double Dip" earnings style under Hilton's "My Way" program (whew!

). So your earnings would be:
10 Points per $ base points +
5 Points per $ from 50% Diamond Bonus +
5 Points per $ from Points and Points +
5 Points Per $ from Amex spend =
25 Points per $ spend
Or 5000 points for a $200 Hilton night.
Also don't forget that as a part of your VIP benefit preferences you can also earn an additional 1000 points per stay at Hilton, DT, ES, and W=A or 750 points at HGI or 250 points at HS or HI properties.