Only one that I will use is ther chatterbox. I have 2 old ones and 2 new X1 slims. The new slims are sweet. They have good range and are light weight. The blue tooth push to talk button that you mount on the bars is great feature. I won't ride with out radios now.
Chatterbox for our entire group. You can catch some great deals on Amazon to get them.
I used to use the earbud and handheld but the chatterbox is a nice upgrade. I am looking into the Bluetooth PTT button and mounting it to my handlebars, but not sure if that is worth 50 bucks or not.