The KOA on the west is nice and there are several other parks on the west side that offer FHU with some privacy. However, I believe the east side has the better hiking trails and views. The KOA on the east side is sparse in cover/vegetation though. One thing to also keep in mind, Going to the Sun Road has not opened until late June the last two years due to plowing. So no matter what side of the park you stay on, you may end of having to drive all the way around the south end to get to the other side if Going to the Sun Road is closed.