My mistake, I meant Holiday Inn in TST ... not at all the same thing, sorry ...
JWM is even better placed than Conrad - it has an entrance right next to the MTR concourse - and is of course a very well run hotel. In fact you can probably bring a girl back much easier to JW, since you can bypass reception entirely.
Agree with fjackass - there's nothing in Admiralty (nothing at all) and very little in Central (nothing worth visiting IMHO) - but you're only one MTR stop from either TST or Wanchai, and two from Causeway Bay.
And if you get bored, the MTR can take you to any of the more adventurous locations - Kwun Tong, SSP, Sai Wan Ho, even Yuen Long
- But my bet is you'll find all you can possibly want in TST and WanChai.