Executive MBA(1 yr) vs 2 yr MBA

Just wanted to seek your opinions as to what is a better choice,whether it is the Executive 1 yr MBA or a 2 yr MBA if one is looking for a complete career switch,like in my case I am thinking of switching over from Medical Field to MBA,with an experience of 4+ yrs,which is a better option and why ?

Just wanted to seek your opinions as to what is a better choice,whether it is the Executive 1 yr MBA or a 2 yr MBA if one is looking for a complete career switch,like in my case I am thinking of switching over from Medical Field to MBA,with an experience of 4+ yrs,which is a better option and why ?