As an example, Travis Rice never used the normal banana tech and stuck with camber (with magne traction) until he switched over to the new C2 banana shape.
My favorite shape is the rocker/camber like C2 and never summer's RC tech. Try not to get caught up in the all the buzz words these companies throw around, a lot of the stuff is more marketing than it is function.
I don't think it sucks that there are so many different options out there though. Variety is a good thing and you just have to learn how to weed out the bullshit.
I own a Neversummer EVO-R and a Bataleon Goliath. Both great boards. I'm definitely a fan of NS's RC tech. There are two board techs I really haven't tried yet, and they are flat and camber between the bindings, rocker outside (like YES boards, and to a more mellow degree Ride boards, and the like).
From a philosophical standpoint, I honestly thing that too many choices can be crippling for a consumer. Check out this TED talk on the Paradox of Choice. It's pretty compelling. Barry Schwartz on the paradox of choice | Video on TED.com