The hybrid drives tend to be faster with things you do often like starting a often used program,ect.
7200 rpm drives would be better for a hard drive only, but 5400 should be ok.
Game's tend to load into memory and not gain any performance once loaded. Some games that load textures on the fly are better served by faster storage, but it is not essential.
Also, make as many threads as you want(one per question, so not 30 about what hard drive
). That is what these forums are use for