I think this year will be much better than previous years. There seems to be a lot more 'mid range' teams progressing well with the rule changes. I can see teams like Mercedes, Renault, Sauber, Williams and Red Bull's little brother team doing well and springing some supprises. There a lot of talented drivers outside the big three of McLaren, Ferrari and Red Bull so i think it will be a better championship than usual
I must confess i'm not a mechanical fan and do not know the in's and out's of the KERS, moveable rear wing and aerodynamics. but i do like watching it!