What kind of Tourist visa does the Hong Kong China Immigration dept (Wan Chai) currently give?

I'm asking this because I'm aware that they change their policy every year. I have a US passport and I need to renew my visa. In the US I get 1-year, multiple entry. What can I expect from HK? 3 months? 6 months? 30-days or 90-days duration of stay?

Any input from anyone who got it recently would be appreciated!