Actually, it's a strength. Microsoft has thrown everything except the kitchen sink into Windows Explorer. This creates bloat and is a challenge to quality control. To view graphic content, Apple provides Preview, which is the default app for viewing JPEG and most other images. iPhoto is dedicated to browsing, management, and minor edits of photographs. Rather than whining about why the Mac can't be more like Windows, my advice is to learn to use the Mac. That is the only way that you are going to learn the design philosophy behind the MacOS X.
Throwing everything except the kitchen sink into Explorer is what makes it so much better than Finder in basically every single way.
Since this is my first post, a brief history: I've used PCs since Windows 3.1, had friends with System 8 and 9, and had to use the Mac at work starting with 10.1 and loathed it until eventually the OS matured into something actually usable with 10.3 and finally 10.4. Now I own my own MacBook Pro, and my next desktop will be a Mac, because I've begun to hate Windows.
But having said that, Finder is an absolute piece of junk when it comes to file management, and is my main hatred of OSX.
The lack of a thumbnail view in this day and age is ridiculous, and I just hope there's a less obnoxious implementation of it than CoverFlow in Leopard. Because I don't necessarily want to, or need to flip through a folder of mixed file types (images, videos, etc.). This is just needless eye candy. What I want is a fast, working thumbnail view in Finder without having to set the option per window for icon size as you have to do now.
Have you used Explorer on Vista? The column view now has sort filters like Access and Excel, where you can limit file lists to things such as:
0-100K
100K-1MB
1MB-10MB
etc.
Or by alphabetical ranges. Or show only certain file types. There are literally hundreds of different columns you can add in Vista Explorer.
This is extremely helpful. The path system, which thankfully they're bringing to Leopard in the form of breadcrumbs will also make me want to kill Finder less, but why is there no "up one level" button? More so, why is there no "up one level in a new window" option, like holding control and clicking it in Explorer?
Why is it, if I have, say, four files:
1.jpg
2.jpg
3.jpg
4.jpg
If I'm on 2.jpg, hold shift and highlight down to 4.jpg, then realize I don't want 4.jpg highlighted and hit up to de-highlight it, Finder instead highlights 1.jpg as well? (so all four are then highlighted) Is this logical?
I also hope there's an option to copy/paste paths from the breadcrumbs in Leopard's Finder to throw into the "Go to folder" window similar to the run box in Windows, or maybe even to paste directly into a Finder window.
Plain and simple, Finder blows as a file navigation tool in almost every single way.