LED animations are nice, but they shouldn't stand in the way of functionality.  The DOTKLOK has very long time transition animations.  This will get annoying real soon.

Some of the clocks show the time up to second resolution.  For a bed side alarm clock, I don't see a point in doing that.  Besides, how accurate is the clock anyway?  If the clock is not regularly synced to some time source, the shown seconds will be incorrect.  Second resolution is useful in timers (for cooking etc.), but an alarm clock is not a timer.

O-Led Morphing clock

Nice animations

link

Harifun's Morphing Digital Clock

Nice animation, (too) big LED array, too bright, blue color will keep you awake

Harifun's Morphing Digital Clock

Craig Bonsignore's Open Clock Project

Nice clock, but without a manual, you can't properly operate it.  Sometimes digits are green and sometimes red.

Craig Bonsignore's Open Clock Project, also on Hackaday.io

Xronos Clock

Xronos Clock
The idea of the arcade buttons is good, but the menu navigation is quite unusual.  The black button cycles through the menu items of the top hierarchy level.  The red button is used to go from top hierarchy to the level second level.  Then it cycles through the menu items of that second level.  The white button finally is used to change user settings.  As there are only three buttons, you can only cycle in one direction through the items.  For setting the year or the minutes of the hour, that's quite annoying.  A fourth button would have made menu navigation a lot more intuitive: up, down, select & back.

See how long it takes and how many key presses are needed to set it all up?

Nice housing

Matrix Clock

Nice animations

Matrix Clock (technical data can be downloaded here)

DOTKLOK

Nice animations

DOTKLOK

Alpha Clock Five

• Simple housing
• Expensive LED display.
• Acrylic housing (laser cut)

Alpha Clock Five

3-Way Display Alarm with 2.2" TFT

• Has a brightness setting for day, night and allows setting brightness level for day/night transition.
• It's personal taste, but :
  • I dislike the use of a different color for each digit.
  • Why design & 3D-print a RECTANGULAR housing?  Choose a COTS-housing, design your electronics to fit that housing, make cutouts in the housing where needed.