Logic Pro a replacement for Garageband?
So I would like to start getting rid of redundant programs in my computer and I was just curious if anyone knew FOR SURE if I got the latest Logic Pro from the Mac App Store if it would have the same instruments and loops as Garageband (because there are a lot in there that I like) and just a whole bunch of new instruments, features and loops added so that I could delete Garageband, OR are they separate programs so Garageband would have stuff (instruments, loops, etc) that LogicPro would not have? Should I keep both, or can I just outright get rid of Garageband because Logic Pro has everything (literally) that Garageband has and a bunch more?
And on a side note, Logic Pro on the app store was advertised as having the ability to open Garageband files. They obviously meant the computer version of Garageband, but since I will be keeping Garageband on my ipad at least, will files generated on the ipad be able to be opened in Logic Pro once I send the file over? Thanks for your help!