hi Mourinho,
Can highly recommend the Westin Grand Pacific. It's a really nice hotel and really handy location. There's a sky train station right outside the door, it's quick enough journey from the airport, not far from the bus station and close to a canal boat stop - the canals are really handy for gettting around too.
The hotel has a lovely pool, a couple of restaurants and - allegedly - the world's highest karaoke bar. Don't know if that's a good thing or not! The rooms have all been done up recently and are very luxourious. We've stayed there twice and have had no complaints.