I use Photoshop when i really have do something huge i mean good whatever. I have photoshop CS2 and its although damn good, but i hate waiting for it to load, so i rather use Fireworks 8, its nice for graphics for webpages. Oh yeah, it easier to and integrates well with flash. So basically i use Fireworks cause i do more work for web.

As far as slow loading is concerned, fireworks loads slow to but not that as ps, however once you get used to with that, everything seems normal .