best for Emma?

I switched my cat to all wet about a month ago ... so far no weight loss but her coat is SO much more coarse and she cries and scarfs down food as fast as she can get it. 

I wonder if for my cat ... Maybe switching her back to a very good grain free food would be best? Just watching her caloric intake? 

How many calories do you give her in wet food? are they low carb?

They are not low carb ... she is in love with whiskas ... They do not list the calories ... 

I am deciding between these three dry foods if I switch her back

http://www.petsmart.com/food-health...d-zid36-320/cat-36-catid-200028?var_id=36-320

http://www.petsmart.com/cat/food/in...-catid-200004?var_id=36-18345&_t=pfm=category

http://www.petsmart.com/food-health...t-36-catid-200028?var_id=36-352&_t=pfm=search

Its written here somewhere but I forget ... How do I know how many calories she should be getting? 

It can be confusing, can't it?!  Here's a good article:  http://www.thecatsite.com/a/how-much-food-should-i-feed-my-cat

If i do the innova dry food ...the math says only 1/3 cup per day, thats not much but its higher quality than Whiskas pouches. would it benefit her to add liquid to her food or anything? since I know they get moisture that way. I already have to do it with my dog so for the cat too is no  issue 

She also has set feeding times ... currently she scarfs down her entire pouch and begs for more. 

If she likes what she is eating can you just stay with the whiskas pouches and add a little dry to supplement  ? 

That won't get her the nutrients she needs, and its extra calories. I feel like I should trust my gut. And only put her back on wet when I can afford something really good quality.