The way I have made the trend pick is to find the trends that hit at the highest percentage. While your Boston on the road trend is juicy and looks great, it only has hit 70%
While I appreciate that, none of your trends are 40+ games in stat pool size, so my take would be 70%+ over 40+ games is a lot more solid than 80%+ over 5-15 games. The smaller the grouping size, obviously the more its subject to being an anomaly.