Drew, I own both the Bosch 1617EVSPK and the Dewalt DW618PK and the dewalt is the better of the two for a few reasons.
First, the standard sub bases are all clear, and an extra wide opening base is included.
Then there's the power cord. On the dewalt kit it detaches from the motor. It seems like a gimmick, but after changing bits and setups today about 15 times
it's something I've come to appreciate.
The router body itself is shorter than the bosch. This makes for better stability as the center of gravity is lowered.
It has a very nice centering cone that's useful when using template guides (for getting the sub base perfectly centered).
The plunge base is much nicer, smoother plunging action and good dust collection.
You'll be happy with either of those two. I'd not choose the single speed bosch as it limits the bits you can use safely (the bigger the bit the slower the router should be run).
The hitachi kit I'd avoid for the fact that when I worked at lowe's last year that router kit and its varients came back as defective quite a bit.
I really haven't had much experience with hitachi though. Most of my tools are (in order) Bosch, Porter Cable, Dewalt, Delta
The porter cable kit mentioned is great. The plunge base leaves much to be desired but the router itself is a mini beast. Very
small but very powerful. Those 690's were built to last.
So in the end, either the bosch or the dewalt kit will suit you fine. My preference now though is the dewalt all the way.
The 3 base kit is nice but I really don't care much for D handles.
And FYI Chad, keep watchin this thread. The dewalt kit (DW618PK) was on sale a few weeks ago for $150. Excellent deal. I'll keep posting good deals as they come along. Drew's a dirty old man!