Let me state my profile first.

Work experience: 5 years bank experience in Hong Kong
GPA: below 3.0 at the Chinese University of Hong Kong
GMAT: 590, 21 for verbal and 49 for quantitative
TOEFL iBT: 90

I have been admitted by Hult MBA program starting at Boston, but I have read many topics about Hult here and seems that I have to re-consider whether to accept the admission or not.

Meanwhile, I have also applied for Rice and Miami. With my weak points at both GPA and GMAT score, what is my chance of admitting to these MBA programs?
(Rice is asking for my scanned-copies of documents and I was at the third stage as stating by their email)

I would like to stay at US to gain some work experience after my MBA program. Will it be difficult if I choose a not so reputated MBA program like Hult and Miami?

I don't understand why Rice is interviewing you. You must have a very unusual profile. Is your bank a big recruiter from Rice?

University of Miami has an average GMAT of 640, so I think that's also a stretch school for most people with your profile.

I would suggest you consider taking more time to improve your GMAT verbal score, because many schools will wonder whether you will be able to succeed in classroom discussions.

Otherwise, consider these schools:
University of Arizona (Eller) (AZ)
Claremont Graduate University (Drucker)
University of Cincinnati (OH)
North Carolina State University (Jenkins)
Rollins College (Crummer)
American University (Kogod) (DC)
Florida State University (FL)
DePaul University (Kellstadt) (IL)
St. Louis University (Cook) (MO)
Brandeis University (MA)

Thanks Duncan. Probably I will try to get a higher GMAT score, but I am afraid I should wait until next year to apply MBA afterwards as most of the application deadlines have passed.

For my another question, is Hult MBA not worth to have? Will it be difficult to find a decent job in US after I graduate from a not reputated MBA program?

Well, the discussion on this board about Hult is quite uneven. It's interesting that they get into the FT ranking, since the FT requires AACSB or Equis accreditation, and Hult has neither. But the average salary is pretty good: http://www.hult.edu/en/programs/mba/career/employment-statistics/career-statistics-overview/

However, the 78% employment rate was down from 81% last year and, from the discussion on this board, you can see the school is not selective in the traditional way. Perhaps not all the students are super-strong and not all of them will find it easy to get a job.

Some of the accredited schools with lower GMAT do get similar salaries to Hult, and the idea of a two year programme with an internship will make your journey easier:
University of Arizona (Eller) (AZ)
North Carolina State University (Jenkins)
DePaul University (Kellstadt) (IL)
University of Houston (Bauer) (TX)
San Jose State University (Lucas) (CA)
San Francisco State University (CA)
University of Tulsa (Collins) (OK)
James Madison University (VA)
Washington State University (WA)
University of Massachusetts--Boston (MA)

This is a really good list, Duncan - A few observations on these US schools:

If you're a resident of Massachusetts, the University of Massachusetts at Boston is a really stellar deal at less than $13,000.

The University of Houston looks like a good place for those with less experience, as the median number of years of experience for the current cohort is two.

The base salary of those who graduate from Arizona/Eller is over $82k - which is pretty good for a school in this tier.

University of Arizona (Eller) (AZ)
North Carolina State University (Jenkins)
DePaul University (Kellstadt) (IL)
University of Houston (Bauer) (TX)
San Jose State University (Lucas) (CA)
San Francisco State University (CA)
University of Tulsa (Collins) (OK)
James Madison University (VA)
Washington State University (WA)
University of Massachusetts--Boston (MA)

When choosing a MBA degree, don't settle on a school that is of no interest to you. I agree that you should reconsider taking the GMAT again to improve your scores. If you don't believe that Hult will provide the ROI that you are seeking, try the application process again after retaking the GMAT.