Hi there, I just graduated from the MA Law programme at Bristol and thought I could shed some light on this topic.
While firms (and everyone else) generally considers the MA to be equivalent to the senior-status LLB, it actually is not. It is a qualifying law degree but all the courses are taught (and more importantly, graded) at a postgraduate level which means it's much more difficult to do well. We were specifically told by our professors that a piece of work that would have gotten a 1st on the LLB programme would only get a 65% on ours.
Also, the grading system changed for the MA in 2010, requiring students to obtain distinctions (1st) in two-thirds of their subjects in order to graduate with a distinction overall. (This is a considerably more onerous requirement compared to the LLB students, who need either an average of at least 70%, or 1sts in half their subjects with an average of at least 68.5%.) Since this requirement has been introduced, no student has obtained a distinction qualification. Mind you, our course was filled with people who received 1st class classifications from universities like UCL, Oxford, Stanford etc. So definitely take a look at the statistics for how many firsts, 2:1s, 2:2s etc are awarded from each of the programmes you're considering.
From your list, I think Leeds is probably your best bet.