I have a wal mnk2 4 string had from new in 92, used it for many gigs and in studio.
Never let me down always sits great in the mix, in a live situation.
I have and still own fender jazz, a stingray, a precsion , ken smith,
they are all great but the wal is my favourite. The only downsize is because of its value I dont use it for all of my gigs.(not the ruff pubs)
I dont find the weight a problem .
In fact I have a wal mk2 4 string fretless on order at the moment.
But as been said already if one bass suited all ,it would be a dull place.