Roboform as a large number of advantages over the Norton offering.  For me, the key deciding features are:

1. Sync - I use the Roboform Anywhere product, so my laptop, phone and workstations all share the same login information.  A change to a password done on one computer automatically updates all the others. 

2. Ability to choose which credit card to use to fill in purchase information.  When presented with a credit card information screen, I can readily choose which credit card to use to enter the information.

3.  Automatic strong password generation.  I can press a button, have Roboform generate a strong password, fill it in, and save it.

4. Firefox compatibility.  Had I relied on the Norton product, I would have had a big problem after updating to Firefox 4.0.  Yes, I know the patch is out now.  But during the time it wasn't....

Overall, the Roboform product is much more mature and useable than the Norton product.  That said, I look forward to seeing improvements in the Norton product, and would love to kill off Roboform.  I use Norton 360 for protection on my Windows machines - and that product has now gotten good enough for backups that I have killed of iDrive.

Regarding the crashes:  they occur on my laptop running 32-bit Windows 7 professional.  They do not occur on my workstations running 64-bit Windows 7 Ultimate.

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-neil