I'm a big fan of the Ultimate Ears super.fi 5 Pro. I've had earphones from all the manufacturers you mention, and had similar issues of them fail within 3-6 months.
My super.fi 5 Pro's are going strong still after a couple of years. Pricey though. I also have knock off Sennheiser MM50's that I bought off of eBay for $15 delivered that are the daily use buds.
Not good 'wadding them up in your pocket'....The UE's always go back in their case. The MM50 knockoff's get abused with in/out of backpacks, dropped, etc.
Here's another source for research specific to Headphones, earbuds, etc.
Head-Fi: Covering Headphones, Earphones and Portable Audio - Powered by vBulletin
As they say on head-fi.org.....sorry about your wallet!