I have a Samsung 226BW 22" widescreen "S" panel and I like it. That said, a Planar 22" is also good, perhaps better. This is because the Samsung, along with many screens, has a 160 degree viewing angle while the Planar has a 170 degree viewing angle. Ten degrees may not seem like much, yet it means there's more room for adjusting the height without having the screen seem to fade out.
I also have to add that if money isn't a problem, a 24" widescreen is better. The 22' is not all that big, mainly being just a 19" screen that has been stretched slightly. If I had realized that at the time I bought the Samsung, I would have gone for a 24" screen.