I put the SW-Motechs on mine. I haven't done anything with highway pegs yet, but plan to eventually - my knees need to move every so often.
Just from looking at pix, I'd say the H-b bars probably offer a little more protection, but I think the SW bars look a little nicer, and I believe highways bars can be mounted a little lower on the SW's.
Mine arrived within a few days of placing the order. In fact, they got here before I had the bike. Pretty good service.
My opinion only (as you asked for), and I'm a newbie so take that for what it's worth.
Former DL650K6 rider