Joining for articleship

hi guys this is zak here, i've cleared both grps in nov'11 in first attempt and i dont know where to join either in BIG4 or Mid-size firm coz after finishing CA-Final doin articleship in BIG4 gives us some weightage and i haven't received any positive response from big-4 and iattended interview in midsize firm i got selected but i'm yuet to join there dont know what to do whether to join in midsize or wait for call from big4 and wait for another 2 months.......dont know plz help