Hi @Alex B. I know you're finding your feet around here, but please try to make a bit of an effort with your posts. Have a look and see if we've already got similar topics, flesh out your posts with a bit more stuff (what do you think, what is your favourite, etc), and you'll be just fine.
For me, my favourite Intamin is Stealth out of my limited selection of 7, but on the world stage I'd guess either Skyrush, El Toro, Expedition GeForce or Taron would be my favourite. Or potentially Maverick or Millennium Force.
I have asking myself this question since I rode Taron last January. I am *really* torn between Taron and Skyrush. Both are so good and crazy in their respective categories I don't know if Taron should get #1 (until I rode Taron this places was residing in Skyrush).