Landslide Lake - no question, great water, great fishing, tough enough not to be poluted by tourist hikers, yet not so long you need a GPS finder
Great basecamp for 3-4 mini hikes.
I would only go there with people who could easily walk from downtown to Riverside Towers and back withouth getting sore or needing anything more than a 5 minute rest. I made the mistake of once taking a GirlFriend along, i ended up tweaking my back cause she had to transfer most of her pack to mine, 80/40 ended up being 100/20 - tent action was good but I dreaded the hike back
MYK