1st, 2nd, 3rd, and 4th Gen - engine swap

I'm going to do an engine swap on my 91 civic dx among many other things I plan to do. However I can't decide whether or not I should go with the JDM SiR b16a VTEC from the jdm 91 hatch or if I should have a b18c5 VTEC from the Type R Teggy dropped into it. any feedback would be great. I'm tempted more with the b16a due to saving money and weight on the front end and I love to have things as original to JDM as possible If that makes sense. please tell me which engine and why. thanks

Kenny