Last year, starting around week 5, going with the plays picked by at least 2 of the current top 5 contestants (and passing when the top 5 had picks on both sides) won at about a 58-60% clip until the last couple of weeks of the season.
Be careful of just looking at "total times picked" data for all contestants - it does not subtract the number who had the other side. Some games seem to be picked by a lot of contestants, esp if there is a line move after the "contest" line comes out - and you can't get that number by the time the picks are released. Classic case of chasing after old line moves - it might work for the contest, but not for players having to use the current number.
One exception, parlay cards can often be found with the older number, if it hasn't moved so much as to be taken off the card.