Profile Evaluation request

Hi,

Would appreciate if you could evaluate my chances for i) entry to H/S/W, and ii) full scholarship at a top 20. I'm a Pakistani professional; my profile is as follows:

1) 2 years work experience in the marketing function of Pakistan's top FMCG. If I apply this year, by matriculation I'll have 3 years of WE. My job includes planning (i.e. identifying growth opportunities in category on the 5 year horizon), campaign management (liaising with creative, media planning, activation, digital agencies) and innovation management (liaising with supply chain, R&D).
2) 770
3) Lahore University of Management Sciences (Pakistan’s best business university) I graduated top of the class with a GPA of 3.9. I also attended a student exchange program for a year.
4) President of international student club at university. Also won multiple national student competitions.
5) None
6) HBS, S, W. (if I can get a full-ride at a top 20, would definitely be fantastic)
7) R1, R2
8) Brand Management in CPG
Also, i'd like to hear your view on whether I should apply this year or gain further work experience (given that I don’t see any fundamentally different learning coming my way in the next year and a half at work- also I’ve read that applicants with good GPA/GMATs should apply earlier, as the more experienced you get, the lesser grades tend to matter.)