Allow me to laugh before trying to answer; there is no such thing as 'better sound quality' - it simply can't be fit into any metric that works across a psychohistoric glut of humanity. Instead, we get people saying that clear players or warm players, or 'emotional' players are best for SQ - there is nothing that can tell a player apart from another that stands even an inch high to personal preference.
But personally, I'd take the Gumstick over the Clip for fun sound. But, I'd never use the gumstick in the daytime as I cannot see the screen and the thing becomes and iPod shuffle (without good controls).
For the M2 earphones (which are easy to drive), both will sound divine, but the Gumstick may serve up less hiss and a little smoother midrange.
I doubt, however, that the gumstick comes close to the acuity of frequency response that the clip is capable of.
Quote:
Originally Posted by
abhijollyguy 
Which one is the best according to Sound Quality? I will use Brainwavz M2 as a earphone. Expert comments needed and also the user of both these player need ur comments.