first bike advice

I need some advice between bikes as found a handfull and don't know whats best i do a little rec trail riding its between the halfords voodoo bantu, the speciaized hardrock sport disc, the dawes xc 1.8 or a 2010 gt avalanche 2.0 or whether it worth waiting a little longer and having the option between a specilized hardrock pro disc or a 2010 gt avalanche expert are any of these good or is there anything else rcommended