Nikon/Canon/Panasonic Best one for video?

Which of these camera will have the best camera quality? As in if I took a video, which one would have the best video quality.
Panasonic HDC-TM900 3mos
Canon t3i
Nikon D7000

D7000 shoots exceptionally well. If you search youtube for "Patricia Mario Who KNows" you will see a video shot entirely with the D7000

T3i is probably the cheapest option i think, and canon is known for it being the best camera for video in the industry. Check out the sony a33. Its probably better video quality but doesn't allow you to do quite as much with aperture and all as the canon but if you're not using it for film production it shouldn't matter

i have a sony a55 (same as a33 for video) and i'm a film student

It is best for video.

All of these brand of camera are quite good. If you want to take a good video, you need to command good skills and have the a good flash light. When use to take pictures, you can also use it to prettify them.
by the way, when you have a camera, you also need a series of accessories. Meyin is a company to produce them, if you need, you ca find the information in Alibaba.

Canon