6 MPS weighs 1620 kg , thats the leather pack , the poverty pack is even lighter.
6 MPS would be my choice ( leather ) out of the cars you listed , much better car than the 3 MPS and you can use the power in the wet and dry , not much slower than the 3 either, good for 14.2 1/4 mile .
There is only one probelm , the resale value is already poor for some reason. Until a couple months ago you could still find new 05 cars in the delerships. You can get 10 k of the recommended retail price, so dont pay more than $50k for the leather pack brand new , even less for demo.
If I was you I would consider liberty GT as well , go and test drive one , they are a good car, subaru are very reliable cars and have a good resale value, about the same price as the 6 MPS but you wont gat much off the retail price .