What do you want and expect out of an engine? Are you going to go N/A or FI?

B18C1 is a good engine with lots of options. It is a good N/A engine, and also good with boost.

H22 has lots of torque. It will require different mounts. It would be a great N/A engine. For turbo you would have to build it a bit more than the B18C1 to handle it.

B18B is non-vtec. It is less money, and it handles boost very well.