I have Saint brakes on my DH bike and 203 rotors F&R. If/when I to go "full-enduro" I will probably get Saints for that as well, although rotor size will depend on the frame and fork.
A HD trail/enduro bike can work for most part riding, but a lot of my friends who tried that ended up getting full-on DH sleds. I actually tried that as well - my Carbine 275 was originally built to be a "do everything" bike, but I quickly missed having a DH rig. That said, a good rider on a trail bike can still drop me.
If you do want to run a trail bike at a place like Mtn Creek, do yourself a favor and invest in proper DH casing tires. I cannot recommend this strongly enough. It will make a HUGE difference in the bike's capabilities and thus your enjoyment. The difference between my Carbine on trail tires and Magic Mary Super Gravity tires was staggering. If you can swing it, a second set of heavier DH wheels would also be a good idea.