Here is the way I rate them. On a scale of 1-10
Performance:
Lowrance 10 Humminbird 8

Customer Service :
Lowrance 2 Humminbird 10

Unit Pricing :
Lowrance 4 Humminbird 7

Even though I worked as a electronics/computer repair tech I do not want to gamble. As long as the unit finds structure and give me a pic that I can reason out.Thats enough to keep me happy. While these test may be interesting they won't improve what I care most about . Customer service.

Others may care about performance or familiarity with brand or whatever. So the matter will always remain a personal choice.