Have been walking this line for a long time - presently no Sadowskys in the house, but their fit and finish (Japanese and NYC - I have no experience with the German or Chinese products) has always been excellent, and that preamp just plain sounds right...on top of which, the passive tone control is a fabulous tool in both active and passive mode. I play five string and my Laklands have been active, and their electronics just don't do it for me - in particular, no passive tone control, and I don't think the Hanson electronics were a step forward from the Bartolini stuff.
But then we turn to ergonomics, and for my body size and type, the original Lakland body shape just fits like a glove. I also prefer the 12" Sadowsky radius and compound 10"-13" radius of the Laklands to the more rounded Fenders that many know and love.
I can hang with Lakland's 35" neck, which does not feel like a reach 'cuz they situate bridge close to the edge of the bottom bout, but generally prefer 34."
Frankly, my ideal bass would be a Lakland 34" build with narrow frets and Sadowsky electronics. And I've come close to that...in 2015 I commissioned a Carl Pedigo build - 34" 5-string, light but solid ash body, rosewood board, John East preamp with passive tone and variable mids, and Duncan humbuckers with splittable coils. A few years ago I simplified the pickups to Nordstrand big blades, and I'm often running them in passive mode, although I now have a Sadowsky stomp box on my pedal board and am using it for smoother tones on certain tunes and vibes.
I also have a project in process - a Roscoe Beck V that needed some love but has a kick-butt tone that fits well with my present cover band...I'm getting it back in a few weeks and dying to try it out on the following series of gigs. And I'll probably dig it greatly...and then probably wake up one morning and realize that I'm still best off with the Pedigo...which has been a recurrent pattern as it has seen off contenders that are great - and sometimes exceptional - basses, but at the end of the day, ergonomics are destiny.