I never understood all the IE hate, to be honest. Until Chrome came out, I used IE7 as my daily browser. It's just better than Firefox in my opinion.
I share your sentiment.. I develop against IE first then test it against the "good" browsers... which rarely screw it up. IE sucks for script debugging.. I mean EPIC suck. You're not even told what line of what file is screwed up (IE seems to concatenate everything into 1 file when giving the error report), but I've learned to rely on myself not to make common scripting mistakes, and created a cross-browser "console" object to aid in debugging.
Safari has the worst script debugging on the planet. It essentially tells you whether or not there was an error. Oh, wait... and how many errors, total. Thanks, Safari!
And yeah, it takes about the same level of effort to develop against IE as it does against FF. The advantage is that your stuff generally then works right in Firefox first try.
http://developer.apple.com/internet/safari/faq.html#anchor14 (among other google results)
But, then again, there apparently were several Google results.
http://dustincurtis.com/screenshots/Team_WhiteBoarding_with_...
And have you ever tried to develop complex ui sites on IE? I'm sorry...it just sucks and there is no good way around that. And I'm someone who knows IE6/7 quirks pretty good. Their script debuggers are utter crap and their developer toolbar is the most ancient thing out there. At least in IE8 they are copying Firebug...at that point it might not suck as much but who knows until I use it a while.