my view of leopard is that it does have many advantages over tiger.
Firstly, a topic of much discussion, the dock and appearance.
My opinion is that it is a welcome change. They needed to do something to the dock, spruce it up a little and bring it into the 21st century.
agreeably the glowing blue dots (shown in my screenshot above) are rough around the edges and aren't as easy as the simple black triangles of tiger, but i'm sure this will change before october. But stacks and the grid view are pure genius and are very efficient, i find it great to leave my videos and wallpapers folders in the dock as i use them regularly and i leave my applications folder there too.
The downside to the dock is its lack of customization for instance, you cant change it back to 2D mode if you dont like it and it decides automatically if a stack or grid is best (dependent on number of contained items) and it can be manually over ridden.
The new menu bar is a bit fancy looking but other than that its the same old, its not distracting as some said it might be and it looks great with every colour background.
New menu look, in leopard there are rounded corners and gradient blue hover overs, looks more smart and ..cool:
this continues in the dock:
Secondly, the new Finder.
it looks great!
coverflow helps you quickly browse photos
built in pdf and movie controls for coverflow work great!
brings your applications folder to life
and quick look helps alot too
I love the new finder, its focused on helping you find exactly what you need FASTER. Some may say that coverflow is just eye candy, (in some folders it is) but for pictures and movies browsing...awesome.
Another note to make here is that preview.app (ver 3.5) has also seen some improvements:
Thirdly, Dash-clipping
what can i say, endless possibilities and really great improvement to the weak dashboard.
Finally, Its great! honestly its a vast improvement so far. Please don't knock it until you've tried it, the eye candy doesn't slow down the speed of the computer a noticeable amount, i'm on a mac mini and everything os smooth. There are bad bits to it, but i think thats the point of beta software, to iron out those bad bits? ( such as no keyboard shortcut to quicklook? )
It'll be fantastic in october.
p.s. i just remembered to mention my favourite new feature! For any one who has used a PC in the past, when you want to delete a file you click on the file then hit delete on your keyboard, well leopard can now do that! wahey. no more dragging to the trash! im so glad they finally added this in as it got on my nerves
anyway hope my little write up helps.