Voted for LX, STD and GT Series. If any of those will be organized, I'll try to attend as much as my time allows. There are quite many endurance races and endurance races provide being in or driving for a team which is not good for me. For the reason, that I'm not in any team and for the other is that I never know if I'll be able to attend the round or not, so no point promising any team to drive for them.
I would advise to make something different than what there is already. For example, LX's, haven't seen any league with just those cars. Also we don't have any STD leagues atm. if I'm right? But what we do have is plenty of GTR and endurance races. Also rally cross seems to be pretty interesting I guess, since I haven't seen any league that was based just on the rally cross.