I have to agree with dark_b and some others who have worries over Whiplash and his costume. Iron man could finish him within seconds, his chest beam alone would put a hole straight through this guy and the fight would be over.
Oh, and people saying "Well its not like they are going to have Iron Man just finish him right away." Sorry, but this is NOT what I want to hear, as I for one wouldnt be happy with him having oppurtunities to finish the fight quickly but he doesnt 'because its a movie.' That **** just wouldnt fly with me or the general audience.
They need to think of a good reason why Iron Man wouldnt repulsor beam his ass straight away, and I personally dont want it to be because Iron Man is de-powered again due to whatever.