Pat:
Nice topic.
A few years ago, I yanked my 3 and 4 irons, and replaced them with utility clubs that essentially play as 7 and 9-woods. I don't think I'd ever go back, and can count on one hand, literally, the times that I missed my 4-iron (never my 3-iron).
So, I play five woods (driver, 3, 5, two utilities), 5-9, three wedges (pitching, 52, and SW of 56), and a putter. If I had to lose one, it'd be a toss-up between my 3-wood and my 7-wood utility. I think I'd miss my 3-wood more, but honestly, if forced, I could get by without both of them.