I haven’t heard the other iems on your list but I have been very happy with the quad drivers. I have other more expensive iems, Shure SE846, just got the empire ears legend x... the quads obviously aren’t equivalent to those sets... but I have been very impressed by the sound quality they have. I am totally sold on hybrids at this point, I am a bit of a bass guy. That being said you can’t beat a dynamic driver doing the bass frequency and that’s what the quads have. I feel like they punch way above their weight class and they have been very durable. I also have had contact with 1more and they have been incredibly responsive and friendly. For the money I don’t think you can beat them. Now, I have heard very good things about the campfire comets as well. People love those and say they are crazy good for what you pay for them. I don’t think they would have the bass like the quads do, being they are a hybrid... and the comet a single vented ba, but I haven’t heard them. Campfire is said to have amazing customer service and the metal housing they are using for the comet and atlas looks very durable as well. I love my quad drivers, they have served me well and I highly recommend them. I don’t know if they are the best at that price point, they’ve been out for a little bit now and the technology moves so fast... I love mine and again I don’t think you’d be disappointed in them. They have good dynamic driver bass. That I can say for sure.