@jeffvegasHere
Here is another person who buys and sells vintage gear that I emailed today to ask the same question:
Hard to remember I sold both of them a year or two ago. Got $1000 for the Rowland, $750 for the H/K. The Rowland wins hands down in looks. It also may have a little bigger soundstage but difficult to work on and repair. The HK was tough to beat for overall bass and musicality. Also easier to upgrade and work on.
I hope this is helpful.