In my opinion:
1. Black and Yellow - Incredible song, one of my favourites of the year (and last year) for sure
2. E.T. - I love this song. I didn't care for it back in 2010, but I love it now. Such a weird song though.
3. Rolling in the Deep - So original. I hope everybody copies it so we get more songs like this next year.
4. Firework - A bit generic, but the strings in the chorus are EPIC. Like a dance remix of Viva La Vida.
5. Someone Like You - A nice change of pace. I think it'll help make a comeback for RnB and rock in the future.
6. Hold It Against Me - Quite generic, but I love you Britney.
The rest. AWFUL.
Fitting that Give Me Everything and Party Rock Anthem were #1 next to each other, because, frankly, they could be the same song. Last Friday Night would've been interesting if it was released in 2007, but unfortunately Nelly Furtado beat Katy to it. Moves Like Jagger, whilst it was nice to see Christina back and dominating like she used to when I was a kid, the song is one of her most generic ever. I can't even remember how Born This Way goes. S&M was a let down, since there was no nudity in the music video. Grenade is the most dull song ever, although I appreciate it was a big different to everything else in the charts. It's like Justin Timberlake with Timbaland taken away. Just a snooze-fest-worthy Michael Jackson clone. We Found Love can go back to the 90's where it belongs. Don't laugh at her Kylie Minogue, at least she's TRYING.