I looked at alot of options when building my car and the one that made the most sense for me, was Hondata. It is simple, reliable, and it gets the job done. My car is daily driven at well over 300whp everyday - no problems at all. Tuned by John at Secret Services, naturally

It's really up to you, I'm not gonna tell you if one is better then the other - just what I use and my experience. It is a matter of deciding what features in a engine/fuel management system you want for your car and which product best fits that profile.