It isn't having a ball or tee-handle or "Mushroom" on top which makes it feel better (OK, so everyone thinks the shift ball will feel better, but I've found the Berg Tee to feel more natural, and I always like the feel of the old Mushroom, 'cause you could slip your fingers under it with your thumb on top to shift).
It's how it's made and put together AND having new/nearly new couplers and bushings along the line.
I like my Berg. Expensive....YES, but it is made of really strong metal, then machined to very close tolerances, meaning the lever assembly itself has no sloppy feel to it. Then I went with a new, neoprene coupler, a new tunnel bushing and a nylon bushing in the shift rod cup below the shifter (found out too late that the rod cup was worn). Put all that together and it feels like a Ford Top-loader - it clicks from gear to gear and is precise, rather than many others I've driven where third gear is "somewhere over there>". With my Berg, you can actually feel the transmision actuator lever engaging, and feel the synchro rings spinning up.
Best thing to do is go to a Speedster gathering and try out a bunch of different shifters (as Lane has done) and get the one You like best. What you like isn't necessarily what someone else likes, and BTW, None of those we've talked about look or feel like an original pre-1960 Porsche shifter, which was more like an original VW Beetle lever. They were vastly improved around 1960 or so - beefier, gently curved and nicer looking and feeling, but were still a little sloppy even then.