I was torn between the Canon HF11 and the HF20 (I went with the HF20 in the end), you will be interested in the linked forum below where someone else was faced with the same dilemna.
That person ended up getting hold of both models and recording some 24mps raw footage in different lighting / situations etc. They kindly uploaded and provided visitors access to these files.
Post #37 is where the link and provided instructions to access are. Btw, once there you will probably need to right click and save target as.http://www.avsforum.com/avs-vb/showthread.php?t=1136369
As a side note a poster mentions that the HF10 doesn't record @ 24mps.
I hope this is what you are after.