I have a canon xh-a1 which it says records at 1440x1080 so wouldn't I want to import my footage at the same size not 1920x1080 or does it matter. Im starting to use apple prores and I pick the 1440x1080 apple prores but when I go to capture scratch and right click on a file it says its 1920x1080. Is this alright if it is doing this, or should I try to figure it out and fix it. Also I compared a 1440x1080 and 1920x1080 clip and there was barely a difference in size, can anybody explain this?

It's normal. 1440X1080 aspect ratio is non-square pixels recorded by HDV cameras. Software expands them to display properly as 1920X1080.

Here's another previous thread, with an embedded link to another previous thread that explains it better.

1440 x 1080 v 1920 x 1080 - The Digital Video Information Network (http://www.dvinfo.net//conf/showthread.php?t=86562)