First let me say that I am not a full time professional editor but here’s my experience with the two.
I started with Vegas 4.0 in 2003. I bought Vaast trainng DVD’s and finished the entire series, so I had a good start.
In 2005 I bought my first Mac G5 and FCP. For the past five years I’ve tried to like this program and was committed to it. I put in many hours of training. Now I’ve given up on FCP.
I recently bought Vegas 10.0 and Win7 to run in Boot Camp on the Mac Pro.
The constant need to render when mixing media in FCP was the killer. Now that I’m back using Vegas I’ve found that the render times are significantly faster. My present project is to convert old VHS family analog video to digital and burn it all to Blu-Ray. Last night I rendered 3 hrs. 53 min. of video to .AVI in 1 hr. 10 min. using Vegas.
During the editing I mixed in a little AVCHD and some jpeg just to see what would happen. There was no need to render the timeline. FCP would need to stop and render.