Media Player Classic Home Cinema
Media Player Classic Home Cinema is quite a popular video player for Windows. You need to download its 7Z or ZIP folder in order to use it without installation.
This portable video player has all essential tools which you may require while watching a video. The video settings options you get are: zoom, video frame (double size, half size, etc.), pan & scan, increase/decrease rate (speed), filters, shaders, and subtitles (add, save, download).
You can create a playlist with desired videos by dragging and dropping videos to playlist window. The created playlist can be saved as pls, m3u, asx, etc. files. Other handy features you get are navigation options, thumbnail creator, interface customization, etc.
All in all, this can be your another good alternative as a portable video player software.