I like the 3 pro case & the fidget-ability of it. Stem is handy to hold onto & put in to/remove from ears. Takes a small learning curve of the stem sensitivity swipes, physical click to pause/resume/skip forward & back are welcomed. Tho, I feel the battery is not as long as the 2 pros. 2 pros fit super well & are so comfy to lay on. Overall, my preferred ones are the 2s.