who did it better??

ok i wanted to see if you all would like to try something a bit fun...maybe fun i dunno depends how much time you have on your hands lol what i am gonna do is post two links and these link will be two mash ups, in both songs there will be one song that plays key to both songs.....i would like to know who did it better in your opinion....let me know in comments :)

first up

second up