I addressed how I would dose your GH in your other question, but I would like to address the difference in brands here. It all comes down to quality and consistency. Generic colored tops can be very good, and if you are getting them from a good source like Naps, you can be assured that he is going to offer the best possible product he can, for the price. That being said, when you go with Hyge, you're paying for peace of mind, that you are getting a consistent product that is going to perform well and is pure. 

Let me tell you a story. A couple months ago, I used the rest of the Hyge's I had and switched back to some blue tops that I had on hand(from another source). Within 1 wk, i started to feel side effects that I had been able to avoid, such as elbow pain and CTS. I was using a higher dose of Hyge, but they were much easier to tolerate. All I felt from Hyge was some mild numbness in my fingers, sometimes I'd feel a little hypo and I would get the most insane pumps in the gym. They worked great and with next to no issues. The blue tops worked too but I'm guessing they weren't quite as pure or that something was a little bit different in how my body used them. At the end of the day, they would do the job, but I would much prefer to pay more for quality...consistent quality. 

It's impossible to say how they stack up on a IU to IU basis unless you has a specific batch tested of each. I believe the blue tops are more likely to vary.