Why Kanthal A-1 32awg?

[SolemnPenguin]

I'm very new to rebuilding atomizers. From leafing through these forums I see that most people prefer to use Kanthal a-1 32awg.

Why is that. Is there anything wrong with using Kanthal D? (Seems more available right now) What about other gauges?

Can some one give me a rundown to get me started?

 

[Lumpia]

http://www.e-cigarette-forum.com/forum/atomizer-mods/320042-resistance-wire-kanthal-nichrome.html

 

[SolemnPenguin]

Cool, thanks!