I have the E18, E60, E90, Geek, A9, and G10 earbuds.
Here are my thoughts.
G10 - These are the most comfortable earbuds I've ever owned. I can wear them all day and forget they're there. They have great sound, and have become my go-to buds for just about every situation. The only time I don't use them is when I need to be aware of my surroundings since they seal very well and don't have passed through.
E90 - These are bass heavy and comfortable. They're great for hip-hop or pop music. They're also very responsive to eq settings making them work for almost any type of music.
E60 - Great sound. Light weight. My son stole them from me because he like them better than his airpods.
Geek - These were only ok. I had trouble keeping them in my ears when I was active. My wife loves them though so they are now hers.
A9 - These are my least favorite of the group. The base was so over pumped that it tended to drown out the other sounds. They had kind of a muddy sound signature.
E18 - These sounded good, but weren't very comfortable to me