What dj/4x should i get?

Im looking at buying a dirt jumper bike but i don't know whats best. Im 13 and have been riding dirt bmx for around a year im about 5'8' and 130. i want to switch over to mtb because i want to try something new. ive been looking at dj/4x for a while and ive narrowed it down to the Giant brass 2, the norco havoc 24, and the eastern thunderbird. what one would be the best?