I agree with Speedy. LED is the way to go.NO WAY I'd go with either one in today's world. LED all the way.
I have used LED for yard lights for the past few years with not one complaint or negative feedback.
HID yard lights are CHEAPLY made and WILL need maintenance and lamp replacement. LED will just need to be replaced in 10-15 years, or more.
SimKar are very affordable and well made. RAB are very good as well.