Another vote for "Have a Kitchen Aid and love it"! I've had mine several years, it's so easy to use, we use it all the time. A few years after I got it, my SIL was getting one on sale at Target on Black Friday. She had an empoloyee discount, too--I just said, "You are going to love it!"
My only recommendation is, decide what you really need, in terms of capacity and features, and what you really want, like color. You will have it forever, so get what you really want--the slight price difference won't matter over time. I have a white one, and sometimes drool over the gorgeous color ones--but, I'm re-doing my kitchen next year, so white is probably best, for now. I also don't have much need for special attachments or a huge work bowl. But, knowing you make heavy doughs a lot, and you have a family of 5--it might serve you well to get a stronger motor.