IMO you should just get whatever type of boa you like the looks of the most... that way no matter what, you will be satisfied with your purchase. These are live animals and getting viable babies is never a guarantee, as you can see from some of the posts on this forum.
Speaking from my own experience regarding breeding albinos since that is what you are asking about: I bred a female albino to a male het albino in 2002, the female was 4 years old and quite large (which may have had something to do with it). The resulting litter in '03 consisted of 18 premature babies (and I think 2 slugs). 8 were albino still borns all with very bad kinks. 10 alive consisted of 5 albinos and 5 hets, of those only 4 survived (2 albinos and 2 hets). Luckily none had the dreaded one-eye but still, the still borns were all badly kinked. I know this is not albino x albino, I was just trying to illustrate that there can be some deformed babies born in any albino breeding, it's always a chance you take with the albino (weak) gene. I also personally feel the problems resulted from her being powerfed (before I got her) and I bred her too early. The het may have been related, I am not sure. She hasn't been bred since as I worked to get her in good shape and to drop her fatty reserves over the past few years.
Good luck with whatever you decide to do, I hope this didn't come across as a rant.. it's hot here in the bay area and I'm a little cranky. 
-April
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'There is a very fine line between "hobby" and "mental illness."' -Rainshadow