I am shopping around for a new motor, it's actually between the Z6, B16-1, or even JDM D15

2/3 would have to be converted to OBD1, but if I was looking for reliability with power - which would be my best bet? It's gonna be a daily driver to school (30 mins) and work (20 mins)

 

I drive my B16 45 mins a day to school and 20min to work and it runs like a champ. Just make sure you get a good motor and do the swap right and you'll be cool