"The video camera sales people I have spoken too say that when you import AVCHD playback skips a lot and it takes a ton of time to import and render. "
That is untrue.
Standard AVCHD will import via the Log and Transfer feature. My system ingests an hour in around 10-15 minutes.
FCE will transcode to AIC (APPLE INTERMEDIATE CODEC).
You do have to set the correct Easy Setup to match the incoming footage.
Editing is smooth and no rendering of the clips is required when things are done correctly.