This is an excellent response and I appreciate your use of different metrics. Both your Tier rating, and the "prospective Angelswin" Tier rating have Cleveland in Tier 1 which seems to upset some people. So even though different metrics are used, the results are somewhat supportive.
Since the "prospective Angelswin" Baseball Tiers are meant to be crowd sourced, We will take your suggestions and have the interns try to incorporate them . We already added results in last 10 games as a metric due to a good suggestion.
The goal of the Tiers is to evaluate each teams performance using a snap shot in time. Yes, the schedules are unbalanced, but we have metrics which attempt to address this, even if not to the extent you would desire.
Your Tiers emphasize RPI which is perfectly fine. The driving metrics for this one are "series won", and performance in last 10 games.