Baselining using sys.dm_os_performance_counters output

Hi All.  Hope this makes sense...

When you query sys.dm_os_performance_counters, you get perf counter data normalized something like:

COUNTER_1, VALUE

COUNTER_2, VALUE

If you get the same counter data out of Performance Monitor, it's denormalized something like:

COUNTER_1, VALUE, COUNTER_2, VALUE

My question is in what format do you store counter data in your baselining, and do you modify it for display/analysis purposes?  I'm thinking that normalized is better for display, for example in Excel Pivot table, whereas denormalized is better for display in Performance Monitor.

Thanks!