You may have already decided BUT, I think either would be great. Based on the map, you can ride up 88th by Avista to head north or if you're in Broadlands, you can ride to Erie and north. If you don't mind roads (vs trails), you'll have plenty of options at either location. Plus, there is good hiking in Spring and Fall at Dowdy draw at 128/93 (it's too hot in the summer IMO). It's often windy here...just how it goes.

Good luck with your move!