Question about fastest way to enter US

[dianas]

Hello. I am a US citizen, my husband is Mexican, we are going to file for some type of visa for him to enter the US while his process of becoming a resident is in progress. Now, I have 2 questions. My first, if we apply for a visitors visa in Mexico, and it is denied, will that cause problems if we then try for a K3 or immigrant visa or work visa? This seems to be the fastest way to get in. But we don't want to take the chance if there is going to be a problem later. Now my 2nd question is which visa should we go for, so it will be the fastes, if we decide to apply directly for the K3 visa, the immigrant visa or the work visa. My husband qualifies for all three. Each time I've asked any organization involved in immigration I always get another answer! We just want to be together and live in the USA, as soon as possible!!!! Please help! Thank you!!!!