QTP and WinRunner are tools used for automation. They are 
primarily used to create regression scripts for 
functionality testing. QTP employs an Object Oriented 
approach and is basically VB scripting. Winrunner uses TSL 
for scripting which resembles C. However QTP is more 
powerful since the language offers much more scripting 
features, QTP has additional features (like in built data 
tables, Keyword driven approach etc) and hence QTP is 
preferred to Winrunner.Test Director on the other hand is a 
test management tool and is used for the test management 
activities like creating test cases, logging defects etc.

qtp and winrunner both are the automation tools where as 
the test director is test mangement tool to write the test 
cases manually and to report the bugs.
qtp got two views which in tems called as expert view and 
key word view where as in keyword view there the 
user/tester can make use of the keywords  accroding to 
their diffirent functionalities,so tester dont need much 
knoweldge of programming lanuage just need to know the 
activites or actions.
qtp requires vb script which is very use to learn and 
implement and where as winrunner requires tsl which is 
known as test script langauage which is very similar to c 
langauage
qtp has got  active screen and where as winrunner won't 
meanwhile the test analyst can analyze the process and he 
can determine the way how the test case or record(testcase 
run)iteration of test run and easy to find out the test 
case run process.
qtp has 4 types of recordings instead 3 types of recorings 
in winrunner
qtp is the dedicated tool to automate the test scripts and 
where as winrunner is dedicated for performance testing 
where using qtp regression testing is done 
and so many qtp scrpits all web based and windows based 
aplications and allmost all kinds of [rogramming lanugauges 
environments where as winrunner wont...............

as testing remains for ever just like qtp........