Definatly a situational question but
at 25nl im going to bet every thing hard simply becuase i found too many people will call with hands they should fold and most people will also pay almost anything when on an oesd or flush draw to see the turn but not often the river. Therefore for me id just pot bet when you think you are ahead all the time. Yes you will win many pots uncontested that are small and you have to be aware that callers, when you have this sort of table image are dangerous (providing anyone at 25nl is paying attention to your table image) Id bet a set like top pair for example. At this level imo with so many players willing to make bad calls then dont play fancy poker play abc poker betting hard when ahead etc. If players will make bad calls they will also make awful calls with unmade hands when you simply defend good hands. thats where i would think the money is to be made