Driving myself mad over nail guns.

[JimD]

I have a 23 guage (bostitch), 18 gauge (porter cable pneumatic and Ryobi cordless), 16 gauge (bostitch) and 15 gauge (harbor freight).  I also have a flooring nailer/stapler, an upholstrey stapler and a couple framing nailers but I don't think the OP asked about them.  I've retrimmed my entire house.  Base, crown and casing.  90+% of the time I used my cordless 18 gauge Ryobi.  It is just more convenient.  I have a cordless compressor too but the brad nailer, while big for a nailer, is just more convenient to haul around.  I used the 23 gauge for returns (with glue) and the 15 gauge for window stools. 

When I build furniture I most use the 23 gauge pinner but also use a narrow crown stapler to attach plywood backs to cabinets.  The joints in the furniture are tighter than some of the molding joints so a little pin is all I need to hold things until the glue sets up. 

 

[mkasdin]

I settled on the Bostitch (7yr warranty) oiless for most:

15 GA DA angled finish nailer for tight spots and a little extra holding power for heavy trim like shiplap
16 GA straight finish nailer for all other heavy trim
18 GA brad nailer when trying to minimize nail hole appearance
23 GA Grex pin nailer (would probably go with Bostitch to keep it easy, but love my Grex)
18 GA crown staple gun for heavy stapling
18 GA narrow crown stapler for finish work

Good assortment of nailers and staplers. I ditto the 23 gauge grex. I grew to really like it, but it’s more of a unicorn tool.  I am thinking for kitchen build outs a 21gauge Cadex would be a good choice? I don’t own one but it sit in the middle of a 18 and 21 gauge. I’ve also heard of people filing down the striker to minimize the surface hole.
I own a 23 gauge grex and an oil less 18 gauge senco finish pro 18 mg for finish trim.  A 22 year old Hitachi 16 gauge for finish nailer made in Japan. I had to throw out my senco palm nailer, seals went bad and it was too expensive to repair.,