I really don't find them to be all that similar in taste. the original Orlik DSK is powerful and I rub out the broken flakes further before loading. The smell is just like you would figure a Burley smell to be like, and there is a smidgen of Virginia supposedly in the blend but I really can't taste it. Very smooth and never gets bitter.
I've only smoked a few bowls out of one tin of the Mac Baren HH Bold Kentucky. Unlike Orlik DSK, this one is rubbed out fully and very moist in the tin. It is perhaps a bit stronger, but the tobacco really tasted "fresh" to me. I bought a bunch of tins to try again a few years down the road as I think this one will age well, particularly with the Virginia component added to the blend. If you like strength then both would be good choices. HH Bold has a somewhat floral taste while the Orlik DSK just tastes like a strong, straight forward tobacco. And again, I am only comparing a really well aged original version of the DSK and not the re-release to a really fresh tin of the HH Bold KY, and that can be like comparing apples to oranges since aging can really change the presentation of a blend.