I am leaning towards the Polk SurroundBar 50 which needs to be paired with an A/V receiver. The use of flags to kill the digital output really blows me away and destroys reliability, which is king IMO.
I've done the Polk a couple of times now and it remains one of the best reviewed bars on the market to my knowledge since it's all speaker and requires an external A/V receiver.
I believe we will see more and more sound bars with HDMI inputs on them, and I believe there are already some out there which can do this, but I simply have no ideas which ones they are, how well they work, and how controllable they are. I don't want to spend five hours researching this, but I really do need to do so I expect.
**sigh**
This is not for my personal setup, but for client's installations and on-walls just don't work with the space really - nothing L/R of the display or even bookshelf speakers will work. Tight spaces with limited above/under room. So, this discussion really needs to stick with sound bars only (unfortunately).