Unless your preference is that largely middish Jack Bruce or Andy Fraser sound, the seventies sound is more versatile as pup position, maple neck and tweaking of the last generation mudbuckers make for a more attack-rich and distinct sound with still enough mudlevel ooomph to send a P Bass home crying to his mom and asking her if he shouldn't better become a banjo. The seventies sound has more treble and less overbearing mids, bit Ric'ish even though it's not yet as scooped. What you don't have with the seventies EBs is that fuzzy overdrive sound of the early sixties EBs (which many people die for) or the close to hilarious sublows (and nothing else) of the late sixties slothead era EBs. Radar Love was played with a seventies EB-3 or EB-3L, try getting that sound out of a sixties model.
Personally, I also think that the seventies EBs feel more like a bass as opposed to the guitar handling characteristics of the sixties models, but many people prefer the older models for just that.
Uwe