I started boating at Lake Mohave. I think it is absolutely beautiful there! Always trailered the boat in and out every day when we stayed in Laughlin.
Been to Havasu a handful of times. Most of the time in my 20's we went for Memorial Weekend.
Been to Parker twice and enjoyed it both times.
All 3 are different for me and depending on whom I am going with depends on where I go.

Next on the bucket list is the Lake Powell House boat.