i tried the Ety's, Shures, and UEs before finding happiness with the Westone UM2s. Without doubt the smoothest and leas fatiguing of the high-end choices. I ultimately upgraded to the Westone ES3 (custom molds and 3-way driver). Although this was a noticeable improvement, it made me realize just how good the UM2s were. That said, it is important to experiment with the tips. I happened to like the large foam tips, as they gave the best seal and improved bass, but others have commented that they prefer the flange tips better.
If you spend some time on head-fi.org, you will see that the UM2s have been very favorably reviewed there.
If you spend some time on head-fi.org, you will see that the UM2s have been very favorably reviewed there.