I've been using Kdenlive/Ubuntu since 2008 and I don't know when this happened, but I opened up the "audio" effects last week and found alot of the plugins I would normally use in Ardour. Yes! I really dig these LADSPA effects.
Kdenlive has been always becoming more and more kickass. I also love how keyframes and automation is visualized on the video/audio clips now.
If we could ever use Kdenlive with qjackctl, I would be so happy. To use Ardour and Kdenlive together would be a dream come true. Synchronize video with the audio AS I'm EQing it. That's my dream.