We stayed at Shenanigans which is close to the strip. It's built into the side of a hill, so the roads are steep and every site looks down onto the roof of a neighbor. Got high marks on RVParkReviews because of the owners. Nice people,
We looked at Lakeside and it seemed nice. We'll probably stay there next time. Level, right on the water and close to old downtown (we're not much for the shows on the strip).
We also drove through Tablerock. Very scenic.