I as far as I'm concerned, the Amiga has "always" booted alot quicker than other platforms.
Back in 1994, when I got my first HD for my A500, my brother had a 386 with 8(!)MB RAM, whereas I had 3 in the A500 (512k expansion, plus 2MB in the A590) And I had WB2.1 in there asa well.
For comparance sake, my brother booted to DOS, and I booted Workbench. The A500 was ALOT quicker. And my brother didn't even have sound or network to deal with....... so not alot that went on in the PC's bootprocess. It was mainly the RAM test of the EMM386.exe that slowed him down.
But mine was alot more pretty and alot more useful than his was