as said above by mike in std trim the saph is better but with the right mods the 3 door is better,iv owned litterally loads of both and of course the saph is better value for money but the 3door is more rewarding if you do the right mods..
The only problem your have is if you get a nice 3 door youl never want to use it for the fear of damaging it,it then becomes more of a garage toy..
So the moral to the story is if you want a nice ussable cossie that you wont be frightened to use and drive hard then get a nice saph,if you want a lovely looking piece of history that you wont rag around a track then get a 3 door...
The time you keep your motors for it wont matter anyway!!!
cheers danny