Our advertising area located here:
https://www.rollitup.org/f/rollitup-advertisers.147/
https://www.rollitup.org/f/in-it-to-win-it.148/
is a good way to see how seedbanks who have reps on the forum promote their companies, answer customer questions and how they promote themselves through customer service.
I see Gorilla seed bank typically has a HUGE following on here, and i believe it is mostly due to their customer service skills, I personally buy things based on customer service just like many others.
I have ordered personally from attitude seedbank, and didnt have any problems, the only issue i didnt like was that i never received my tracking number but because i purchased the security on the order i wasnt overly concerned. They did seem to have a massive spike about a year ago of having their shipments seized but that problem seems to have been fixed.
I really like herbies website design set up and i feel the option chooser is really a good way about going through seeds that are specific to my needs.
whomever you choose im sure you will choose wisely, this question (your op question) comes up daily if not twice daily, so dig around on the forums and read threads in your research and you will have many many reviews to read from.