Well, with all my respects, the achievements of each artist were truly personal for them. Shall not be compared one to each other as it would not fair enough.
I grew up with the influence of Madonna, Whitney Houston, Mariah Carey and I just enjoyed all of their works, if now you're influenced by Lady Gaga, Katy Perry, Rihanna or else just enjoy their works. No need to say that your favorite artist is better or greater than others.

Why don't we just enjoy their work without hating each other.
If you do not like an artist then keep it personally as well as the more you hate it just shows how much you pay attention to him/ her.

So Peace everybody. Let the music entertain us not break us apart.. :)