This question comes up like every 3 days. I don't get it. It's like asking what groceries to buy. How hard is it to browse the App Store by category and read some reviews? Then if there are multiple versions of specific apps you are interested in, you can come here and ask which one people prefer, although even then, the reviews and/or number of downloads on the App Store should give you a pretty good idea of which one people like.
Otherwise you get replies like the one above this one, which is ridiculous.