What is the most professional least buggy theme to use forever?

[gymophett]

Windows's themes are very nice to me and I don't feel the need to alter theme. I have actually come to love the Ubuntu default look now (except the icons) and don't mind using it. But what are some other good themes? I also love Dust and the Dust Blue Mod.

[CJ Master]

Despite my negative comments towards Haiku, I have to admit it's a very nice theme with great icons.

Unless you mean GTK+?

[Sealbhach]

There's some nice new themes coming up in Karmic Koala:

http://webupd8.blogspot.com/2009/09/install-proposed-comunity-themes-for.html

I like best the Hanso and the Night Impression themes.

.

[keiichidono]

Shiki Colors Theme
gnome-look.org/content/show.php/Shiki-Colors?content=86717

Arc Colors GDM
gnome-look.org/content/show.php/Arc-Colors+GDM-Walls?content=88305

GNOME Colors Icons
gnome-look.org/content/show.php/GNOME-colors?content=82562