I would suggest you go try out all the model you mentioned is the camera shop first...and about lens lengh you you need to knw what u want as beginner to DSLR..then set your budget accordingly

I would be commmenting which is better or bad with each and another as all model have it's pros and cons...

Alternative you can narrow down your choice DOWN TO 2 models...it would be easier for you to finalise your choice...