Probably the best answer... apart from DO A SEARCH!!!!
This topic has been done to death and it usually gets ugly once the hardcore spectorites show up
As for the designs:
Ned Steinberg designed the bass. Therefore it's the NS shape.
Stuart Spector started using it and eventually trademarked it.
An upcoming luthier, Hans Peter Wilfer started using a clearly NS-influenced shape.
Spector sued him for using Ned Steinberg's shape.
Warwick was forced to pay royalties for each bass and buy the licence.
Later, Kramer bought Spector. Warwick made the deal with Spector, and not Kramer, so they stopped paying. Kramer accepted that; however, some Spectorites still believe that's a ripoff.
End of story.
And for me, Warwick > spector. For you, only you know. Eyeryone has to decide for himself; though it can be easily seen that W has more diversity regarding shapes, body woods, p-up arrangements, etc
End of argument.