What would Phil do? Play the music! If you want to play like Phil, don't copy him; be creative, let your self shine through!
I always loved the Oscar Wilde quote from "The Importance of Being Ernest", where Algernon says, "I don't play accurately - anyone can do that - but I play with great expression".
I would much rather be complimented on my playing than on my ability to be Phil Lesh. I love him, he is a great influence on me, but he has already been Phil, and done a better job of it than I could, so I concentrate on being me. Some get it, many don't, but I do, so that's who I try to please, with varied results. I actually get complimented on my tone by other musicians, and my playing by the public, unless that other musician understands it, or likes it even if he doesn't understand, which is a bit more common. For an example, look under the "Eyes of the World" song thread; there is an example of my interpretation there.
Gone are the days we stopped to decide where we should go, we just ride...