I haven’t really spent all that much time on my installer, which is somewhat silly because its the first look people get of my software and I should really want to nail it. Especially in the consumer market, looks sell software — this is yet another reason why I love my stock icons, as they make my software seem bright and happy, like a Fisher-Price toy. I just switched from NSIS to Inno Setup for a similar reason. Here is the very first screen shown by each of the two installers — take a wild guess which is the one I’m going with.
Ironically, the second one requires two mouseclicks more than the first. I’ll see if I can’t reduce that by playing with the setup script, since additional mouseclicks are also something I really hate forcing on my customer.