I?m planning to pursue mba in the next January intake. Since these three universities ( Chester, Sunderland, Leeds metropolitan ) are in my priority list, Could u please help me to figure out which one is worth and have certificate value ? (fees is comparatively low in Chester )

I would not recommend any of these very highly. None of them are of above-average quality. An MSc from a traditional university would be better. Get into the best business school you can. Take a look at:
- Why freshers' MBAs are worse than MiM degrees from better schools http://www.find-mba.com/board/38133
and
- Which MSc's are better than pre-experience 'Freshers' MBAs? www.find-mba.com/board/22783

At the undergraduate level, it seems that Chester is the best of these three (http://www.theguardian.com/education/ng-interactive/2014/jun/03/university-guide-2015-league-table-for-business-management-and-marketing). For employment, Sunderland is certainly the worst.

PS I think Chester's January entry is at its Warrington campus, where the programme is 16 months rather than one year. As a conurbation, Warrington is much bigger than Chester, less diverse and not so touristic.