I've had Deores shot inside of a few rides, XT's not last 3months, Pro2 front not last 6months, but I've had Hope XC last nearly 5years and still going ( on a mates bike ), and had other XT and Deore hubs last 2years+ so, it's all pot luck really, buy cheap buy twice works for me.
The Halo Freedom hubs look like XC's but take 20mm so got to be different bearings, no play so far, better than the Pro2's and CHEAPer
I've been running Mavic rims, with a Hope hub on the front and XT on the rear for 4 months, had them hand built by Two-Wheels in the Midlands, (best wheel builders in the country, so they say). I don'nt work for them, but one good turn desirves another..... I'm a happy man with happy wheels.
I got XT hubs, Mavic 717s and d/b spokes built from Merlin last Sept for less than I could buy the parts for at my LBS. Very pleased with them. Just re-trued them and they're spot on.