I'm glad it helped a bit, I wasn't sure if that was what you were after.
Salary tax in HK is basically flat 16%. You could be up for other tax if company pays for rental etc, but usually it can be worked out so that you do not pay any tax. Their tax website is really helpful and easy to navigate from memory.
As for which place do we like better? Wow, another tough question. It depends on what you are looking for. Can't comment on the nightlife too much, (I have two kids that keep me at home a lot), but my husband actually prefers the nightlife here.
I like the general atmosphere and surrounds etc here in Singapore better, it is cleaner (in particular the air, the haze there has been particularly bad for past few years) and as I said before our living accomodation is much better here than in HK for a cheaper price.
Quite liked the seasons in HK, but when it is hot it is really hot and sticky and it rains just like here...don't forget the odd typhoon thrown in for good luck, they can make life interesting!
Getting around on public transport is about the same, although I found it a little easier initially there, but not much different in price. The amount of places to go is about the same, both are pretty confined when you think about it but we have always found find things to do. Travel to nearby countries is easy there too.
I miss the shopping in HK, OK I know there is heaps here too, but I love the markets etc over there and the ones here are a bit clinical if you know what I mean.
Overall I like them both, for different reasons, they have their own uniqueness that makes them what they are.
Hmmm, just reading through this I don't think I have helped you at all
