I don't know. They all run hella good on my android.
Well, I for one am not a "fangirl". I made the self-conscious choice of buying an iphone after having done my research, and knowing what I was getting (and what the capabilities of it were being clean and/or being jailbroken). I have not stopped doing research since.
I have tried a lot of different phones, and my brother has a Galaxy S Plus, and cousin has a Galaxy S2. I have tried all of them, and I can safely say that the hardware is great (and I am a big fan of samsung, had a Wave, which was a great piece of hardware, even though Bada was complete crap).
I am really not of the opinion that "oh, Iphone is the best and the rest of you are crap".
I believe that Samsung is tailing pretty close, and I wouldn't mind one bit having an Android (high end one, not the cheaper ones to be honest).
Having said that, it is a personal choice for me to have an iphone, not because its cool or its the best, but because it is what suits me and I like it and it completely covers my needs.