Was the boot time sped up even more in Snow Leopard? One thing, if anything that blew me away from using Mac for the first time (10.5 and I think 10.4.11 which was the first version I used on a personal Mac computer) was that it started really quickly.
If there is anything that would make me recommend a Mac to anyone, that would be it. I haven't noticed tons of stability that everyone boasts, all I do is browse the web with Safari and use XCode 3.1 for coding iPhone apps. I use my Mac almost every day for those things, so it's not that I'm just not using it enough.
So yeah, my Mac crashes a lot more than my Windows computer, but the speed of the boot time is really good. I'm not sure if Safari 4 is what's causing the crashes, but it's possible... it's just like on Windows. The third party software decreases peoples perception of an OS because it's usually third party people that cause the crashing and not the OS developer themselves.