I like Spa, Monza, Bahrein, Hockenheim, Shanghai, Magny-Cours, and for sure Hungaroring! Without this track i would never see F1 live... I dont like Sepang, Monaco, Silverstone.
Spa is a great course and i really like canada but i also like monaco cos its different from everything else. My least favourite would probably be spain because its so boring. No passing, no exciting corners, no nice sequences of corners, nothing. Jerez was a good course i think. And suzuka is a great course. Shame it no longer is used!