THEME:   initial letters of two-word phrases are B and C
   GOOD ONES:     Recently retired NCAA ranking…   BC'S   
Competition won by a knockout?   BEAUTY CONTEST [knockouts, not used much today, are beautiful women: today they're hot or if older, MILF's (can't help noting the dive into crudity)]   
Sooner or later   ADVERB      
BTW:   Athenian with harsh laws   DRACO [wence 
draconian]      
Type of ale   
NOT BROWN [and not good. If it's not brown ale its pale ale.]      
Arm strengthening reps   
BICEP CURLS [as above, made to fit.  The term is simply curls.  But worse, the muscle is biceps, bot 
bicep.]      
ESTO is not used in our language regardless whether Jose uses it.      
Martin of "Adam 12"   MILNER [I believe he died yesterday]      
Average grade   CEE [in what century or what school?]      
Rollerblading safety gear   KNEEPADS [this puzzle needed "Lewinski equipment"]
Certain cutlet   BONELESS CHICKEN [and maybe "Coward"]      
RATING:    

   With these weaknesses it is hard to enjoy.
Three grins = Loved it; Two grins = Enjoyed it; One grin = A bit bland for my taste; One teardrop = Not much fun