Not sure if I can take you seriously after this post.
Yes you can mash in SFIV, but you can in MK too. How can you say SF is a masher? Mashing doesn't happen in high level play, any random 'noob' can come along and mash on a fighting game, whether it's Tekken, MK, SF or Bloody freaking Roar.
If you really think you will get anywhere by mashing on SFIV you are very delusional, just like on MK if you mashed you would get annihilated by somebody that knew how to play. Same with Tekken and <insert series here>
MK is more mash/noob friendly than SFIV is anyway.
Oh and note how I said SFIV and not SF? Because if you are implying SF on the whole is a masher (including the likes of Super Turbo and Third Strike) you are truly lacking intelligence!
I've traded in my PS3 copy of MK now so I guess this'll be it for my MK activity on this forum.
Edit: not just being a fanboy either, I've not played that game in a while and don't really intend to, even with AE coming out