UI Compilations
I have never used any of these since I create my own UI, however I have taken various mods, graphics or fonts out of them. I have listed the most popular, ones I thought looked good, and some recommendations. Clicking the images will take you to the UI download page. The unit frame and bar addons used are listed below each screenshot.
UI Screenshot Site: WoW UI Gallery
UI Compilation Threads:
Elitist Jerks
Plusheal
Tankspot
World of Raids
Wowhead
Wowace
Acaciaizm MiniMe UI
Pitbull3, Bartender4
Resolution: 1280, 1024, 1680 x 1050
alekk UI
oUF, aActionBars - Requires Lua editing to edit frames!
Resolution: 1680 x 1050, other resolutions available: 1280x800, 1280x1024
Aliena's Interface Pack
Pitbull4, Dominos
Resolution: 1680 x 1050
Alza UI
oUF, rActionBarStyler - Requires Lua editing to edit frames!
Resolution: 1680 x 1050
UI Scale : 0.73
Arkive UI
Pitbull4, Dominos
Bati's UI
STUF, Dominos
Resolution: 1680*1050
Boda's Black Box UI
Pitbull4, Bartender4
Resolution: 1920 x 1080
Cady's UI
Pitbull3, Dominos
Caith UI
Pitbull4, Bartender4
Resolutions: 1920 x 1200, 1920 x 1080, 1680 x 1050
CoehlUI
Pitbull4, Bartender4
Resolutions: 1440x900, but works on most resolutions
Damia UI
Pitbull4, Bartender4
Resolution: 1680 x 1050
DegausserUI
STUF, Bartender4
Resolution: 1680 x 1050
Duke UI
Pitbull4, Dominos
Resolution: 1920 x 1080
Finalflo UI
Pitbull4, Dominos
Resolution: 1920x1200, 1920x1080, 1680x1050, 1600x1200, 1400x1050, 1440x900, 1280x1024
fujiUI
Pitbull4, Dominos
Resolution: 1440 x 900, 1680 x 1050, 1920 x 1200
UI Scale : 0.64
GrimUI
Discord Unit Frames, Macaroon
iLive UI
Pitbull4, Bartender4
Resolution: 1920 x 1080, 1680 x 1050
IshtaraUI
Pitbull3, Dominos
Resolution: 1680 x 1050
UI Scale : 0.64
Jasje UI
oUF, rActionBarStyler - Requires Lua editing to edit frames!
Resolution: 1680 x 1050
Kith's UI
Pitbull4, Bartender4
Resolution: 1680 x 1050
KittyUI
Pitbull4, Bartender4
Resolution: 1680 x 1050
LUI
oUF, Bartender4
Resolutions: 1280 x 1024, 1600 x 1200, 1680 x 1050, 1920 x 1080
Namkung UI
SUF, nMainBar
Resolutions: 1920 x 1200, 1680 x 1050
Neav UI
oUF, nMainbar - Requires Lua editing to move frames!
Resolution: All
Nevion UI
oUF, Bartender4 - Requires Lua editing to edit frames!
Resolution: 1440 x 900
Niconaze UI
oUF, Bartender4
Resolution: 1680 x1050
nUI
Custom
Resolution: All
oUF Aion UI
oUF, Dominos - Requires Lua editing to edit frames!
Resolutions: 1440 x 900, 1680 x 1050, 1920 x 1200
PG UI
Pitbull4, Dominos
Resolution: 1680 x 1050
Raynes Iced Cherry UI
Pitbull4, Dominos
Resolution: 1920 x 1080
RealUI
Pitbull4, Bartender4
Resolution: All
Roth UI
oUF, rActionBarStyler - Requires Lua editing to edit frames!
Resolution: 1680 x 1050
Roth UI mini
oUF, rActionBarStyler - Requires Lua editing to edit frames!
Resolution: 1680 x 1050
Rufio UI
oUF, rActionBarStyler - Requires Lua editing to edit frames!
Resolution: 1680 x 1050
UI Scale : 0.74
Shestak UI
oUF, rActionBarStyler - Requires Lua editing to edit frames!
Skullflower's UI
Pitbull4, Dominos
Resolution: 1680 x 1050
SpartanUI
oUF, Bartender4
Stoneh UI
oUF, Dominos - Requires Lua editing to edit frames!
Resolution: 16/9
Svelte UI
STUF, Bartender4
Resolution: 1440 x 900
TukUI
oUF, tActionBars - Requires Lua editing to edit frames!
Resolutions: 1440 x 900, 1680 x 1050, 1920 x 1200
Ultimate Shaman UI
Stuf, Dominos
Resolution: 1920x1080, 1600x1024,