It's down to budget.... If you can afford a US Spector NS2 then do it - you WON'T regret it..... but the resale value takes a dive due to the more 'boutique' price on a new one. If you can find a used one (good luck!) then go for it!
If you can't afford/don't want to spend as much then you can't go wrong with the Euro series. Superb basses, build quality is second to none, tone to die for and good resale value. Should you not be a fan of the Tonepump preamp then it's easy to swap out for an Aguilar/EMG or similar to suit your needs...