Dude, there is one any only one right answer to your question: Monoprice 8320 ($7-$9, and they easily rival the $50-$100 range).   This is a useful resource to get more detailed info on your question...

Dude, this is definitely going to help you out: http://www.head-fi.org/t/478568/multi-iem-review-256-iems-compared-rock-it-sounds-r-20-r-30-added-09-29-12   Its an awesome collection of 256 searchable and thoughtful reviews ranging from the cheapest to the most expensive earphones.  Check it...