Give us a bit more info on the type of gun you are looking for. The EMP is a 9mm compact 1911 (there are a few in .40). The other two guns are primarily .45's but some expensive variants are made in 9mm. Your first decision should be caliber. If you want a 9mm 1911, your options will change a bit. Para, STI and the SA EMP were developed as 9mm from the ground up and IMO are the best options for 9mm compact. If you are looking for a .45, that changes the landscape and brings in more options.
I went through this decision last year and found the Kimber CDP far superior to other choices. Fit, finish, features and accuracy in on perfect little package.