I think BA and ESPN are quite credible in this area. While Law goes a bit more with his opinions, BA basically represents the industry consensus- which is the most objective way of doing it. Among the clubs, opinions undoubtedly vary quite a bit. Every team will have some guys they like more than the consensus, and others they like less.
It makes sense that teams will often end up drafting those players they like more than the other clubs- that's why the player is available to begin with. Ultimately the results are what matter. In that department, the Twins aren't doing too well recently. It's not because they deviated from the consensus rankings though, since their high-profile busts were drafted in line with expectations. They've just chosen poorly.