These kinds of results are always (slightly) interesting to read, but....
Isn't this like asking who is the most beautiful woman in the world?
Or, if you go to a party and look around at the floor — isn't everyone wearing different shoes?
It's all a matter of personal taste, context, and situation.
I've bought a few lenses mentioned in this thread, based on forum comments, and their associated images. But, i've never achieved the same results in my own usage. The particular imaging qualities i thought i was buying were never effectively replicated in my own shots. I've bought "high contrast" lenses, and gotten low contrast results.... I've bought "great bokeh" lenses and then not been impressed by the bokeh in my own shots.... And, then, if you fall out of love with a particular film, or go from shooting in Brazil in the summer to New York in the winter.... Too many variables. But, hey — part of the allure of the Leica-M platform is in the playing around with all these variables. Trying something vintage. Trying something new. Trying to make your prints glow like Doisneau's. Trying to separate yourself and create your own look. And, once you think you have it, you get bored, or someone else gets better results with a 1979 f2 Ultimacron, and you gotta try that next.....