all of those bikes are bad for what you are doing.
you really should get a hardtail (no rear suspension). what you are looking at is way too much bike. I almost died when I saw that turner downhill on your list. do you realize that bike is almost 40 pounds if not more? its meant to take like 20 foot drops! crimminy.
so, i'd look for a decent used hardtail or maybe a rigid. you'd go nuts driving one of those huge bikes around.