This is my first review, so... be gentle, s-s-senpai. :$
Having watched all three seasons of "The World Only God Knows", I can safely assume this is, perhaps, one of my favorite animes I've ever watched until now! Sometimes, it will kill you with laughter, while others, it will rip your emotions mercilessly; sometimes, it will make your heat race, upon a "conquest", but, all the times, if will certainly tie you to the show. You will inevitably want to know what will happen next, after a certain episode, and, thus, occupy all your time, until you realize you're laughing maniacally at 3 am if front of your display, scaring your whole neighborhood! This anime, will, undoubtedly, keep you entertained!
But, now, let's analyse the anime a bit more carefully:
The Story's Rating: 8
It was nothing spectacular (albeit hilarious) until the third season, when things really took off without you even noticing. Unless you have read the manga, or watched an OVA, you'll be completely confused at the first few minutes of the first episode, but you'll catch on, don't worry.
The Art's Rating: 9
Seriously, it was spectacular. It allowed you to truly enjoy the most romantic moments, live the most dramatic ones, or laugh your butt off at the childish drawings provided by the many hilarious scenes of this anime!
The Sound's Rating: 7
The soundtrack of the anime was fine, really, but it didn't leave that much of an impression, except for the song that played at the end of each "conquest" (seriously, people who don't know what that is, just watch the damn anime!). That song will never leave my head (okay, maybe I already forgot about it). :D
The Character's Rating: 10
Each and every character has an important role in this anime. Seriously, you'll get attached to them immediatly, and, as such, you can conclude they are very enjoyable, pulling you to the series, as they each have their own particular trait and personallity. During the third season, the viewers will have some pleasant surprises, which makes me raise their rating to the max.
The Enjoyment's Rating: 10
Oh my lord Kami-nii-sama, please, don't make me repeat myself: this anime will provide you some solid hours of entertainment and laughter. Trust me, I'm a doctor. :'D
Final Rating: 9
As I've previously mentioned before in this review, this is now one of my favorite animes around. I'll be keeping in touch with the manga, to follow the rest of the story. Please do the same, I'm sure it'll be worth it. :)