I think Christina is more of a singer than Britney. As far as dancing I think Britney has her beat. I just wish Christina would put on some more clothes.
Last time I saw Christina live she sang an aweful lot of accapella and put me in awe. She has a voice, an awesome one. Britney on the other hand doesn't and which is why she lip syncs! Also, Christina had actually a lot of clothes on last time I saw her.
I would of gotten tickets to her concert if I had money but now I can wait and see till next time.