Good Low light recording is something all camcorders aspire to
None likes low light indoor recrding
Even the kit BBC or Sky use costing thousands of Pounds are almost always supplemented by additional lighting indoors and a lot of footage felt to be "substandard coming from those high end kit never gets broadcast
AFAIK, the Panasonics have the best representation in the SD card camcorders, Hi def or SD.Canon has a new one the FS100 (Im not too familiar with it as it is new)
What is fairly evident is that pocket friendly ( sub £300)+ S|D card + good in low light doesnt really exist
I suspect the models are broadly similar in performance and you might havre to give them more illumination indoors