My Spector Legend 4 was my first non-very-low-budget bass and has been gigged for about 5-6 years now. I've just acquired a Warwick Corvette Std (from c. 2009, Bubinga body, Ovangkol neck, made in Germany) strung with flats (from a Basschat member). This is a beautiful bass and the neck is definitely slimmer than the Spector.
Which do I prefer? Very hard to say. As they both sound different I tend to alternate - sorry a complete cop out there!