Laura,
It's hard to answer your question without more information. I am assuming you want comparative info on each brand and vehicle.
If you want to send in a question in more detail, we can try to answer it better. The best thing you can do is to go here:
http://www.askpatty.com/chrome.php
You can do side-by-side comparisons there and can look through all the specs of each vehicle.
I hope this helps! Good luck!