I found this site very useful, specially having huge feedback from experts.

I am looking for MBA for sept-2014. selected some universities in UK.
Targetting UK, because want to go for 1yr MBA.
Exp-8yrs in IT sector in big MNC in india. B.Tech-IT. all first class.
Attempted GMAT once-score-530

With this score, surely, I can't get Manchester/Warwick or any top 2-3 universities in UK. I am planning to reappear it. but due to time constraint, I am preparing backup list: target Henely, Aston, Durham, Bath, strathclyde...

Which one is best. or any other top universities?
any suggestion in US for 1yr MBA (not in preferrence yet).

I am shortlisting the universities, and then apply accordingly. so I need some comments from you guys...

How much it matters after completion of my MBA without GMAT or with GMAT?

Your current GMAT is too low for the schools you mention. The FT MBA ranking is very reliable, and that's the best tool to compare the quality of different MBAs.

If you work on your English, then your GMAT score will improve. You can't do that only by preparing the GMAT: the errors in what you have written suggest to me that you need to work much more on your English.

Thank for your reply.
Definitely I need to improve my English to get higher score in GMAT.
But few universities don't ask for GMAT. And I not having much time to spend on GMAT preparation.

Pls suggest me, which college is better for MBA.
Aston,
Durham,
Henely,
Nottingham..
Or any other....

The Financial Times rankings, of MBAs and of European Business Schools, are the best tools for comparing schools. http://rankings.ft.com/businessschoolrankings/rankings