I've used Conway for a decently long time (three to four years, if I remember right; I might not have been an active PC member for this long, but I still did lurk every now and again as guest), and have found it to be very eye-pleasing. Its color palettes seemed to have went along with each other nicely, and it was sort of light-weight, too.
After a while, I thought to myself that I needed some change-of-pace so things would look more fresh and whatnot, and after spending some time browsing through our selection, I finally landed on Pichu², which I am currently using. This one has a lot of similarities to Conway in regards to color-scheme, features, and so forth, being one, major behind me sticking to the style. It's great!