I'm switching my cats over to science diet. Both elderly cats I have were eating kitten kaboodle and I want them to have good healthy wholesome food. My 9 year old cat I got 1 week ago has kidney issues and doesn't drink enough water so I feed him soft food but I saw science diet has special soft food for cats with urinary problems. I am switching my other cat to science diet hard food as he doesn't like wet food much. A couple ppl have told me taste of the wild is much better but is it really? I want to stick with the same brand for the rest of their lives so I should get the best and healthiest. Any thoughts?