I like the mids on both but I am not going to try doing an a-b comparison. That just gives me a headache. To enjoy mids means I need to enjoy the music. Something I cannot do if I am conciously trying to compare. If I could only have one it would have to be the 1707 because they are more versatile being a bit more suited to portable as well as home use. Either can be powered from my daps and either works well with my amps if I so choose. I like the looks of both. Try not to get so hung up on pads when you don't even have the headphones yet. I use the stock pads on almost everything I have. I have tried different pads on a couple of things where it completely ruined the sound. A couple of others where it did improve comfort without ruining the sound.