Comparison of CAD systems

Anybody knows an actual test which compares the performance of different
CAD programs like I-deas, NX 2 and Catia V5?
The possibility for easy changes of (complex) 3D objects and good
ergonomics are especially important for me.
Thank you for hints.
Reply to
Harald Lüling
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Few more information from my side:
Today we are using I-deas NX and testing Unigraphics NX 2.
When we change to another system the iterative design improvement process on _(complex) 3D objects_ shall be more efficient (quick, easy). The rest of I-deas is very fine.
May be Solid Edge is a solution?
Regards Harald
Reply to
Harald Lüling

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