By "ONE" do you mean at least one, as in implying there are none right now. Or by "ONE" do you mean that you wish there would be one and only one GUI/DE for linux?
If it's the first, I would agree because I would willingly pay money to use the Windows 7 or even OS X interfaces in Linux. Essentially, I feel that while Linux has software I can't live without, there is not a single WM/DE out there that I can use without being annoyed every 20 minutes or without having to spend weeks configuring it. Gnome came closest before the gnome-shell move, now KDE is the closest but it's seriously still too buggy and "WTF" inducing. I'm not sure if it would be less work to remove all the "default/assumed" features from KDE (like the wallet that irritates me even when browsing websites) or to set up XFCE to some bearable degree from scratch.
Regardless, I'd still take this selection of environments that are all either ugly, time consuming to configure, buggy, or flat out annoying over having no choice at all. Even if the "no choice" option was really excellent, I would not like the thought of being stuck with it knowing that under some rare condition it might be useless and my only way out is a complete OS switch. Example: as much as I praise the windows 7 UI, I would hate to try and deal with it if I lost my ability to use a mouse. Meanwhile, I know there are nice options in the Linux world that I could use if this was the case.
Pretty much it boils down to my opinion that no interface is going to be good at every use case. And for that reason I'd rather have a slew of mediocre ones that span a broader range over a single one that covers a small spectrum but does it well.
I was in the same situation as you. I had been using mac and then bought a desktop PC and ran Linux. I tried awesome, xmonad, gnome, kde, etc but none of them were to my liking.
So now I run Windows 7, which is more option-full than you might think and develop on a virtual arch box via ssh/vim... It's the perfect setup in my opinion!
If it's the first, I would agree because I would willingly pay money to use the Windows 7 or even OS X interfaces in Linux. Essentially, I feel that while Linux has software I can't live without, there is not a single WM/DE out there that I can use without being annoyed every 20 minutes or without having to spend weeks configuring it. Gnome came closest before the gnome-shell move, now KDE is the closest but it's seriously still too buggy and "WTF" inducing. I'm not sure if it would be less work to remove all the "default/assumed" features from KDE (like the wallet that irritates me even when browsing websites) or to set up XFCE to some bearable degree from scratch.
Regardless, I'd still take this selection of environments that are all either ugly, time consuming to configure, buggy, or flat out annoying over having no choice at all. Even if the "no choice" option was really excellent, I would not like the thought of being stuck with it knowing that under some rare condition it might be useless and my only way out is a complete OS switch. Example: as much as I praise the windows 7 UI, I would hate to try and deal with it if I lost my ability to use a mouse. Meanwhile, I know there are nice options in the Linux world that I could use if this was the case.
Pretty much it boils down to my opinion that no interface is going to be good at every use case. And for that reason I'd rather have a slew of mediocre ones that span a broader range over a single one that covers a small spectrum but does it well.