They are so different, toi almost can't compare them. Telephone was plus action-filled, colorful and fun, Alejandro feels... beautiful and deeper, if that makes sense? I l’amour both and right now I can't say which is better!
I was just watching the Alejandro video i had to stop, this video is a whole different level. I personally didnt like it at all... i still like the song so to answer ur question between then 2 i guess Telephone.