I have owned a Carvin LB20 and currently have a Sting Ray 5. The Carvin got lost in the mix (I bought it to record with) and eventually I traded it off. The SR5 can be aggressive but it can be tamed down, also. I much prefer the fat neck over the skinny Carvin, and the MusicMan is ergonomically so superior to the Carvin shape, at least for me.
For what it's worth, I bought the 'Ray from the bass player in a local jazz group -- and he played it quietly enough that he complained about the fan noise in his Mesa/Boogie Walkabout amp. True story: a band mate told him that, if he could hear the fan, he ought to "turn it up." He may be the only bass player I know who has heard those words!