My interest in Blue Rose was definitely piqued by this thread. Of the three, BR is quite d20 Lite (I don't own C&C, but I do own GT).
Only 3 classes, Defense from d20M, Reputation from d20M, no PrC, no skill points (known skills are assumed to be at their maximum rank), no AoO, no Damage Rolls (Uses Toughness, like M&M?), no Multiple Attacks (this last one bothered me a little), Wealth System, No assumption that every PC needs X,XXXgp of Magic Items.
Character creation:
6 Base d20 Stats start at 0. Distribute 6 points. You can lower attributes below 0 to gain more points for distrubution. Maximum is +5/-5.
Apply racial modifiers
Choose Class
Choose Good Saving Throws, Choose Favored (Class) Skills, Choose Known Skills, Choose x number of Favored Skills as your starting skills. Selected favored skills always have a rank of Level + 3, while selected non-favored skills ( Level + 3 )/ 2. Pick your feat.
Buy equipment
The rules are *not* tied to the Romantic Fantasy genre specifically. There are feats like having discovered True Love in one's lifetime, but all in all the rules could be used for a number of genres.