Comparing boot times from an amiga to an xp pc is retarded in my oppinion. I don't use a PC like I use an Amiga.
My 1.4 GHz pentium D laptop with Xp boots in 75 seconds. This seems like a long time doesn't it? But I only have to boot this thing every 4 or 5 months. When i'm done using it I just shut the lid. With the lid shut, and unplugged from the wall, it floats for 4 days. When I want to use it again, I just open the lid, and its up and running in 2 seconds. Same thing with my powerbook.
My desktop PC stays up for months at a time. I just leave it on. You don't get to do this with an Amiga because you'll be resetting that sucker every single day.