Basic jab, hooks and straights with buttons. The stick ads a lot more layers and angles of the different punch types. Like overhead hooks and upper cuts etc. I prefer to hook with the sticks as well.
Once you get the hang of it....you will have a plethora of punches. I use both buttons and the stick. Also slipping punches is really good on this as well as fenting punches.
I suggest just practiicng a bunch and you will get the hang of it real quick.