Dslr Cameras How To Choose?

First of all thank you for reading an helping answer my question to your best abilities all answers are appreciated(:

i recently got a Nikon3100 an i couldn't stand it, so i returned it an i have gone hunting once again(:
Nikon an Canon make great cameras but when it comes down to it there are more then just those two company's so i've recently went looking more into cameras an i have choose to look at a few others including a canon

1)Panasonic Lumix DMC-G2- anyone ever use this? Pros? Cons?
2)Olympus Evolt E420- anyone ever use this? Pros? Cons?
3)Canon EOS Rebel XS- anyone ever use this? Pros? Cons?

feel free to post links for photos an recommend cameras, i do mostly landscape an portraits, i used to own a Kodak Z1012 IS really simple an took amazing shots at only 10mp, i'm looking for something similar, i'm mostly just an amateur looking to improve my photographs, i have tested all 3 cameras above and looked at millions of reviews plus photos by the cameras on flickr, but i'd like to talk to someone with personal experience

Canon number 3 on your list is the best of your list. If you want a good camera a little more reasonable you might like the Pentax Kr. I just bought one and love it. I like it's uncluttered viewfinder, the fact that the stabilization is in the body and you don't have to pay extra for it in every lens you buy. Also the camera will accept older lenses from the film days which you might find special prices on.

If you could not get good pictures from a nikon 3100, you will probably not be able to get good pictures from any dSLR camera… (since they all basically work the same. Good pics come from the photographer learning the camera functions inside and out).

the panasonic, though a good camera, is not a dSLR.

If you have tested all 3 cameras above, then you are in a better position than us to choose for yourself what is a good camera. You should read the customer reviews for those cameras and see what they say…