Corded drills: Milwaukee
Cordless drills: I prefer Dewalt for the ergonomics and large amount of low-end torque. Still, Bosch and Panasonic are probably better. The Dewalt, despite its weight, and due to its balance, feels best to me.
Circ Saw: Milwaukee or Porter Cable.
Routers: Most of mine are PC varying from 1.5 to 3.25 HP. The PC690 is a workhorse. I own a few Bosch as well. The Bosch run quieter than the PC.
Roouter bits: Amana, and when in a pinch, Freud.
Air Compressor: Oiless, Thomas. Look into them. By far the best.
Nail Guns: I think for what people on this forum are looking for, an entry level PC...I think it's the 150 (or is it 250?) is a good gun. It's an affordable straight finish nailer that fires 3/4" to 2 1/2" 16 ga nails.
Airless nailer: Paslode. Fickle, but good for punch list stuff.
RO sander: DeWalt's is good. I thinkk it's a #420?
Table Saw: Delta. Get the unifence or equivalent (Beismeyer, etc). The fence makes or breaks the saw.
Biscuit joiner: DeWalt
Jig Saw: Bosch, I prefer the barrel grip.
Compound miter saw: the 12" Dewalt is an affordable tool. Should be all you need unless doing large crown, etc, then you delve into the world of SCMS.