+1 for both Smith Crazy and Brander, This is not the case of training wheels on the bicycle.
The best choice in a first powder is one which helps to form those good habits which will lead to a lifetime of using your own fingers.
In previous posts I have seen advocated the idea of weighing all charges when you start handloading, in my view a first class idea.
I advocate using a loading block, and before placing the bullet checking the case for powder. This is another time when a less dense powder helps because it shows up better in the case and an under or over charge is easier to spot.
I would like to develop the habit of always looking in the case before handseating the bullet, even when graduating to a progressive w/powder cop. It is very good I think to know what you are looking for at this point.
I started with Bullseye, at the time, most people did, I believe the only commonly available pistol powders in my neck of the world were Bullseye, Unique, and 2400 then. But, I do not think fast burn rate dense powders are a good way to start.
I very much like the AA & VV powder lines and they are about all that I use anymore.