No, the productivity suite from Apple stands on its own, you can choose to use them if you are going to interoperate between Mac users or you are creating documents just for your own. If you are going to interoperate with Microsof Office users, you will want to using Office for Mac 2015 or run Parallels with a Windows and Office suite in it.
1080p video will be upscale to the native resolution. Why not you go to the showroom and take a look, let the staff show you how a 1080p video will play in it ?
Mac OS X can read/write FAT32, read/write HFS+, read/write EXTFS, and read NTFS. If you want to write to NTFS, you can purchase the following
https://www.paragon-software.com/home/ntfs-mac/, or
Tuxera | Tuxera NTFS for Mac. There are free alternatives too, but the performance is not as good. Read more from
How to enable writing to NTFS hard drives for free in Mac OS X (including Yosemite!)
If you are transferring between a Windows and Mac, you can use Google Drive, Dropbox to easily solve the problem. If you like you can setup share from Windows or Mac on SAMBA/CIFS and then transfer from one filesystem to another via network. You can also format your thumbdrive using EXTFS or FAT32 and transfer between Windows and Mac.