This is a really good post that sums up my feelings towards Metagross. I hate to say it, but Metagross isn't very good in BW. I hate how it easily invites things like Skarmory & Forretress (and the occasional Ferrothorn) that set up all over your team, turning it into a liability. My favorite use for Metagross in BW was its ability to trick iron ball onto to Skarmory in order to remove its flight immunity but other than that I can't see legitimately using it over other Steel-types. I'm actually surprised it hasn't dropped to UU. It's got some fiercely loyal fans.