Have you bought anything yet?? If not just a quick question. Are you going to race the enduro series? If so then fire ahead and get a 150mm beast. If not, then why buy an "enduro" bike? Sure we'd all love a dozen different bikes but ask most if the lads who posted already have they maxed out any of their bikes? Or even come close to the bike not being up to the job/trail you're on? I'd guess the answer is probably no. Just ride the bejaysus out of your anthem and enjoy yourself, spend your money on a big holiday!
2nd. If you want yet another opinion on what to buy, I've a Cotic Solaris with 120mm fork and I've no difficulty keeping with lads on far bigger/better bikes.