By default, SoundForge displays in dB, and WaveLab in % of peak, so there is actually ROOM on the WaveLab display for an OVER (even tho in theory 0dB is absolute peak), so the SoundForge wave display has the appearance of the Peaks being HOTTER (since 0dB is the abosulte top of the waveform display).
I prefer the recording display in WaveLab, as it give a little more information, SoundForge for editing, WaveLab for Bit Depth dithering (24 to 16, as it has Apogee's UV22 as a Native Plugin). For Sample Rate Changes, they're both about equal - personally I prefer SoundForge's Anit-Aliasing algorythym. Plugin chaining is a little more intuitive in WaveLab.
I use BOTH for whichever is appropriate for the task.
Hope this helps...
Rick