Personally, of all the animes I've seen I know a few good titles that are appropriate for kids/ or younger audiences.
1) Princess Nine
An anime about baseball. At first it didn't seem interesting to me, but I bought it on a huntch, and because it was on sale
. To my surprise, it's a really good anime, story wise and and content wise.
2)Figure 17
I bougth the whole collection on sale in a value pack, and although I haven't seen the whole series, it looks good.
3) Someday Dreamers
A really good series. A slice of life type but not too slow paced. But what some may find wrong with it is the aspect of a girl mage. But to be honest, it really didn't matter. The story was strong w/ a good message. And it's not about doing magic just for the sake of it... I would recommend this one.
4) Chance Pop Session
About 3 and their path to stardom as a singing trio. Again, another one many pass up because of it's premise. This is in opinion is one of the better "sleeper titles." There are christian themes and has a really good story. I got mine on ebay; all 3 dvd's (15eps) for about $25 after shipping; US region one release. I was quite shocked on how good it really was. Not bad...
5) Grave of the Firefiles
It's probably one of the "best" anime movies I've ever seen, period. Makes you see how special, yet fragile life is. It's a really emotional film- towards the end. A must see I think.
Those are a few random titles I know that content is okay and the story premise is strong. A few other random animes are: crest of stars, outlaw star and Dual and Kanon.
A few good review sites are:
Anime Tempy
My favorite site for reviews. Most animes have more then one review, giving you an better look overall.
http://www.animeondvd.com