I am planning to take up the GMAT in a couple of months and expect a score in the
range of 700-720 based on current mock tests.

Profile:
Work Exp:
1 yr as Business Analyst for a top 15 management consulting firm in Portland,Oregon.
Analyst and back end consulting in healthcare consulting.

1 yr as (Technical) Solutions Consultant for a small but famous internet
technology company in India.

2.5 yrs as a software engineer for a famous and huge IT services firm in India

3 month summer internship at a famous retail and grocery firm on
IT systems and inventory management at Phoenix, AZ

2 months as a research aide for process improvement for CT machine imaging at a top hospital in Phoenix, AZ

Education:
M.S. Industrial Engineering and Applied Statistics, Arizona State University GPA-3.4
B.S. Mechanical Engineering, VTU, Bangalore, India Grade- 68%(approx 3.5 in US GPA system)

Certifications:
Six sigma green belt (by coursework at Arizona State University)

Extracurricular:
Nothing special but planning to work with Portland Community Service.
Soccer and table tennis at undergraduate college level.

I would be grateful if you could schools you could suggest I should apply to.
Typically looking at Asia Pacific-Singapore(INSEAD,NUS) , Melbourne Business School and ISB in India.
Other options would be US, Europe(INSEAD,Said),
Interested in careers in consulting post MBA. Preferable healthcare consulting or other process improvement projects.
I will be 30 when I enter B-school and interested in going back to Asia.

Am I at a disadvantage with my age and a prior masters degree?
I have had just a year of work-ex post my masters degree. Would that be a hindrance?
How good are my chances in Asia Pacific?
Also how would you rate my chances at US B-schools(Not considering top 5 H/S/W/).

Please suggest.
Thank you !!