I've finished the rating for Music of the Sun. I based my votes by an averge score of lyrics, vocals and melody.
The album got a score of 5.50. Being 3.5 the lowest and 8 the highest.
In my opinion that album has only one highlight and it is not Pon de Replay as you might think.
Top - Albums:
01. Rated R (8.60)
02. Loud (8.04)
03. Talk that Talk (8.03)
04. Good Girl Gone Bad (7.35)
05. Music of the Sun (5.50)
06. A Girl Like Me (5.33)
I only gave four 10s. The lowest score I gave was a 0. The 43.7% of the scores are above 8 and the 33.3% is below 7.
For my rating, a score above or equal to 8 is a good thing.
LAWD.
at the difference between Loud and TTT. 
