I used to always say that my Big Four were Jaco, Jeff Berlin, Jimmy Johnson and Percy Jones - each for different reasons. I have also grown to love Anthony Jackson whose work with Michel Camilo and Hiromi Uehara and others can be absolutely thrilling (the whole Camilo album 'Caribe' is a rollercoaster of absolute delight). If I have to say which one of these was the one who had the greatest impact on me personally as a player, it would have to be Jeff Berlin. Our shared love of Jack Bruce, his work with Bruford, Allan Holdsworth's 'Road Games', his solo albums. I have since found flaws in his concept that often make me doubt myself (I have found the same with Jaco and Percy Jones, if I am honest, although I still love both) - his chorus sound I find irritating and his obsession with featuring the bass when it doesn't actually work very well (his Low Standards and High Standards cds are a it icky - I don't think he understands the Art of it as much as he does the Craft), his obsessions over bass pedagogy (just let it go, JB) but I keep going back to his back catalogue of recordings and many of them are just absolutely fantastic.
It is appalling how little performance footage there is of JB where the sound is decent (a lot of it is mobile phone footage that sounds terrible). Here is a something I just found that gives a sense of where he comes from - the tune is 'Solar' by Miles Davis. I add a second track (recorded) just to show JB when he is smokin'. The tune is 'Emeril Kicks It UP' from the 2009 CD 'In Harmony's Way' - I also attach a link to a complete transcription I did of the tune.
Transcription link - https://bilbosbassbites.co.uk/emeril-kicks-it-up-jeff-berlin/