Hi Charles,
I am using "Description" for a couple of reasons - firstly to show that you can classify metadata comments by your own categorisation types (I have used DataLineage, ToolTip as well) and secondly because I have noticed that views in SSMS use the MS_ prefix - and this way I can avoid MS-based data when outputting.
I don't know if this is good or bad, approved or not - but it seems to work!
Thanks for the feedback!
Adam