On the other hand, both Chris Christie and Jeb Bush led in unfavorable ratings, while Paul Ryan has the highest favorable ratings. Of course Ryan is a mid west Wisconsin boy, so that might play into his high Iowa ratings.
Rand Paul might be the wildcard of the bunch as he does well in both polls having 46% favorable and posting 13% as most electable.
*The Iowa Poll, conducted May 27-30 for The Des Moines Register by Selzer & Co. of Des Moines, is based on interviews with 1,869 Iowans ages 18 or older, of which 400 said they would definitely vote or had already voted in the June 2014 Republican primary election. Interviewers contacted households with randomly selected landline and cell phone numbers. The full sample of 1,869 respondents was adjusted for age and sex based on recent Census data. Questions asked of the 400 likely Republican primary voters have a margin of error of plus or minus 4.9 percentage points. Results based on smaller samples of respondents — such as by gender or age — have a larger margin of error.