Im old school.
My all time favorite bassist is Chris Squire. Back in 1991 I purchased a Rickenbacker 4001CS Chris Squire limited Edition Signature Series Bass Guitar because I was so enamored with his music. The bass was no. 242 out of a production run of 1000 instruments. To this day it is still the greatest bass guitar I have ever played.
Squire is my fav not so much for technical playing (when he was younger he was beyond phenomenal technically) but because of his melodic composition and unique sound. Listen to the entire album "Close to the Edge" and you will understand.
Other favs: Entwhistle, Jack Bruce, Geddy Lee, P. McCartney, S. Clark, V. Wooten
There are so many great bassists today. In fact I have developed a grip with these some of these guys that play these 5, 6, ,8 , 10 string basses because I have a hard time identifying the music they are creating as bass lines. Its more like virtuoso soloing. Great playing, fantastic sounds....its just not bass playing to me, but I am coming to grips with it