Which overnight mail service is the most effecient and cost effective?

FedEx, DHL, or UPS?? Anyone have a good suggestion from your own experience?Which overnight mail service is the most effecient and cost effective?
I would go with Fedex but the others could be cheaper.Which overnight mail service is the most effecient and cost effective?
Cost depends on where you ship to, how heavy etc. UPS tends to have the lowest cost for a "regular" no business customer, however I find Fed Ex has better reliability and customer service. For me it is a matter of service over cost.Which overnight mail service is the most effecient and cost effective?
FEDEX %26amp; DHL ARE THE MOST RELIABLE, UPS HAS MANY ISSUES THAT I HAVE ENCOUNTERED MYSELF AS A BUSINESS OWNER AND WORKING AT MY REAL ESTATE BROKER'S OFFICE.....NEVER USE USPS N0T GUARANTEED, THOUGH THEEY CHARGE THE SAME RATES AS THE OTHERS....
It depens on where you shippig from to where, and types of product and weight. You can check with below three company.



http://www.fedex.com/ratefinder/home?cc=US%26amp;language=en

http://wwwapps.ups.com/servlet/QCCServlet

http://postcalc.usps.gov/



I hope this will help