I've tried Miche and BBB. I realized about a month ago that I had been racing the BBB for 2 years (they were on my primary race wheels). It skipped on one cog for the life of the cassette but since it was the 19 I just avoided using the cog. I double checked to make sure the cog wasn't on wrong and then left it alone. I still haven't checked the cog closely.

Miche I've used a few cassettes. A local rider reported he broke cogs regularly. I never broke one. They were my main training cassettes for 3? years.

Both are like Veloce or Centaur but more shiny. Separate cogs, very shiny. Individual cogs available for Miche I think.

As far as performance goes... I can't tell one from another except when I pick them up or clean them. I had Miche/BBB in my last round of cassettes and I just changed them all (and two chains on two bikes). Now I am running a Centaur, Record, and Record cassette on my three main wheels (training, racing, racing). I bought the Centaur to race on and planned on buying BBB/Miche but then I bought 3 (used) Record cassettes. One is unsuable but the other two are on my race wheels and the Centaur got moved to my training wheel. I wouldn't know one from another from just riding on them.

I have new DA chains, KMC Missing Links, and my drivetrains are 10s. I have a mix of Chorus/Record mechanical bits, Nokon housing.