I have a collection of Wave Editors and each has it's attributes.
Top of my list is Wave Lab Elements 7 which I use for top & tail and mastering and just about anything that involves recording and editing a stereo wave file.
Next is Gold Wave which I mostly use for batch conversion to MP3, It's free to try and for $50 lifetime it's a bargain. I've also used it for mastering but comapaired to Wave Lab it's to clunky.
I have Sony Sound Forge Studio which came with my Sony USB turntable. I use this for tranfering my LP's to Wav. It does a brilliant job of cleaning up crackles and pops. I've never used the full version but I do like it for this one task.
I have Wavosaur tried it and it's OK but pretty sad compared to the rest.
Audacity I also tried once but like Wavosaur it's pretty weak.
I have used Wave Lab since version 5. It is still my most used software and other than Sonar I've probably spent more screen time in Wave Lab than any other app. It has one very important feature that none of the other seem to have. When you open a tool like the Gain etc it STAYS open while you work. You can populate your second monitor with all the tools you be using and they are one click away. All other editors including Sonar require you browse through multi layers of menu's to get to the tools,
every time you want them. So Wave lab wins out for me on Workflow time saving layout.
I also like the fact that it's browser stay's open and my whole album of songs can be easily navigated.
You can have unlimited songs open and they are all tabs across the top.
I can chop a whole night of live recordings into sperate songs super fast and save each one as a new file.
It will rip any CD on the planet, Its tools for live stereo recording are super efficient and rock solid, my list of what I use it for is long. Oh,, I've never had Wave lab crash...
Only downside for some is the dongle, You don't need one, you can use a elicencer software, but I bought the dongle so I can run it on more than one computer. It's actually a good system for that.